Straight Shooter Posted October 28, 2005 Report Share Posted October 28, 2005 I'm just curious about this type of bow. This is not a brand only question, it's about any of the bows that have parallel limbs. There's a second factor in this as well. The stationary roller guide. My question is, do all of these bows have a problem with a critical ATA measurement? My brother has got a parallel limb bow and it's grouping goes all over the place if the ATA goes out more than 1/8 of inch. After having back surgery, I've plenty of time to ponder over this. It just seems to me, that with this stationary roller guide and the flat limbs. It puts so much more stress on the string and harness. Verses the flexable cable off-set bar and allowing the string to slide back and forth on the bar. I don't ever recall hearing of a bow before the parallel limbs came out, of being so critical to string stretch and maintaining the ATA. I know all bows have this and it's common practice for this. I'm not trying to start a parallel limb to reflex, straight limb war. I'm just curious if all the makes are having this problem, AR, Bow-tec, Mathews, etc.. Quote Link to comment Share on other sites More sharing options...
Chrud Posted October 28, 2005 Report Share Posted October 28, 2005 Re: Parallel Limb Shooters? This year is the first time I've shot a parallel limb bow and a roller guard. My Switchback's 'Cuda string did stretch a bit when I first got it, I expected it since the whole package was brand new. It went from 33" ATA to 33 1/4" ATA. The only reason I noticed this was because I seemed to be drawing back a bit farther than usual. There was a little difference in my groups, they opened up a bit, but nothing I was really disappointed with. At 20 yards, for example, a three arrow group went from 1" to about 1 3/4". Once I had the string twisted back down, everything has been flawless since and the bow shoots better than ever. So, to answer your question, yes, that ATA measurement is important. In my experience I didn't notice much of a difference than when the bow is in tune. Actually, the groups getting bigger could have been because my draw length was a bit too long after the string stretch. In my opinion though, it is very important to keep a bow in spec, no matter the make or design. A bow with proper axle-to-axle and brace height measurements will shoot better than one that is out of spec. Quote Link to comment Share on other sites More sharing options...
VTbowman Posted October 28, 2005 Report Share Posted October 28, 2005 Re: Parallel Limb Shooters? [ QUOTE ] Actually, the groups getting bigger could have been because my draw length was a bit too long after the string stretch. [/ QUOTE ] I do not shoot them as you may know, but this sound more likely then a minor brace height being blamed for poor grouping. JMO but inconsistant anchor points can cause this big time. Especially if it an increase in draw length. Its one of the issues I face shooting trad with fingers and various face masks, etc. Just thought I'd throw that out there. LOL Quote Link to comment Share on other sites More sharing options...
Chrud Posted October 28, 2005 Report Share Posted October 28, 2005 Re: Parallel Limb Shooters? My groups were great before the string stretch and great after I get it reset to spec. They were still pretty good with the string stretched, but could have been better. I have no problems grouping that bow at all. Quote Link to comment Share on other sites More sharing options...
Guest mnarcher Posted October 28, 2005 Report Share Posted October 28, 2005 Re: Parallel Limb Shooters? I shoot a Bowtech Tech 29 that is a parallel limb bow. My bow doesn't have a stationary roller it has a cable slide on the bar like most bows do. My groups have also been great. I have shot it about 200 times and I have not had any string stretch that I have noticed. The ATA is still 29.5". I think the stationary roller is brand specific to Mathews or at least I think they are the only ones that have it. I know the Switchback does. I could be wrong though. Quote Link to comment Share on other sites More sharing options...
Straight Shooter Posted October 28, 2005 Author Report Share Posted October 28, 2005 Re: Parallel Limb Shooters? I wasn't sure if all or some of the P.L. bows had a stationary roller guide or not. I appreciate the answers on this, and once again I'm not making any heat over anyone particular bow. Chrud did answer what I was talking about and it was the Switchback. It seems that every site I've gone to, this has been a hot topic on the SB. I'm just wondering now, if it's due to the stationary roller guide. In my opinion, it just doesn't give the string/harness any forgiveness on the release. Granted, everyone that has got a SB, is very impressed with the performance of the bow and it's shooting. It's just something I've pondered over for a couple of weeks now. Thanks guys. Quote Link to comment Share on other sites More sharing options...
Chrud Posted October 29, 2005 Report Share Posted October 29, 2005 Re: Parallel Limb Shooters? No problem SS. It's hard to say, but I'm guessing the biggest problem is the new Barracuda string. The Outback is parallel limbs also and also has a roller guard, so did the Legacy. They still had the ZS Twist Strings, which were pretty good on those models. The Barracuda has had some problems. Some folks have great like, including me, and some have had bad luck. The Cuda was the first "no-stretch" string Mathews has put on their bows and I'd assume there were a few flaws with the new string. That is my guess why the ATA moves a bit. Winner's Choice, another no-stretch string has been out much longer and has perfected their strings. Anyone with a WC has had no problems. I believe the Cuda will be better this year and that will cure a lot of problems. That is just my guess. Quote Link to comment Share on other sites More sharing options...
maytom Posted October 29, 2005 Report Share Posted October 29, 2005 Re: Parallel Limb Shooters? The Pro-shop told me after 250 shots to bring it back to check the tune. Strings usually will stretch after that many shots. Mathew's use to use the Zebra strings, I'm not sue what string they have on the Switchback. But come next year, I'll be getting a Winners Choice string on my Switchback. They don't stretch and you don't need that rubber tubing to align your peep site as well. Quote Link to comment Share on other sites More sharing options...
Chrud Posted October 30, 2005 Report Share Posted October 30, 2005 Re: Parallel Limb Shooters? They have the Zebra Barracuda string on it this year. Which doesn't stretch. And, just like any string, a rubber tube is not required. Quote Link to comment Share on other sites More sharing options...
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