Faster projectile speeds would mean a flatter trajectory and a lower draw weight would enable steadier holding over targets as well as less fatigue over long sessions. On top of that, a tapered bandset has a predictably safe breaking point we'd learn to trust so we'd never flinch in anticipation of a break. I don't think any of that would be detrimental to shooting form?
There are pros and cons with tapered vs straight cut bandsets and if you search, you'll find a lot written on the subject. I wouldn't worry about it affecting "accuracy". Accuracy depends on a lot of other things. Everytime we make a small change there will be a change in our shooting performance owing to familiarity of equipment regardless...
Just experiment, learn and enjoy... we all have preferences discovered through an adventure of experimentation. Have fun!
There are pros and cons with tapered vs straight cut bandsets and if you search, you'll find a lot written on the subject. I wouldn't worry about it affecting "accuracy". Accuracy depends on a lot of other things. Everytime we make a small change there will be a change in our shooting performance owing to familiarity of equipment regardless...
Just experiment, learn and enjoy... we all have preferences discovered through an adventure of experimentation. Have fun!