I've target shot for a while and had my bow at about 50lbs...
Since I started getting into hunting, I went straight to 70lbs. I noticed a difference. When I was at 50lbs I could shot all day long, when I went to 70lbs I could only shot 20-30 arrows in a session. After 4-5 months I'm used to it so it doesn't bother me anymore.
But I agree, with the above, the first shot is the only one that matters.
So now I'll just be messing around the house when I get the urge I step outside and take one shot to make sure I'm still on spot. So far so good. I know that's kind of hard to do in some folks houses.
oh yea I usually try to hold my bow back for about 30 seconds, I figure this will allow me to wait for the perfect shot, while under pressure. I dunno if its good or not but I can easily group 1 inch at 50, all day long. Everytime I think I can release I always tell myself, that's a good shot, and I count how many times I could've released inside that 30 seconds.