LittleChief why didn't it work ? Are you arrows falling short ? Way left ? Way right ? All over the place ?
Theoretically, it doesn't matter HOW FAR the shot is, if you shoot the same way every shot your arrows will group.
If you're grouping well, then its just you haven't 'learned" to adaptyour shots to longer ranges.
I'mbetting you aren't grouping well though, am I right ? That brings into many factors. Are you 20-20 ? Are youcrossdominant in your shooting (right hand shooter, left eyedominant ? )
With my Zipper its rare my shots are left/right off. maybe a bit, but not much. Up/Down is the norm, becuase of range of shooting.
Stump shooting is picking something that stands out in the woods - it focuses your eyesight on one spot, not unlike placing a small object on your target. Tennis balls work great.
Could be that NOTHING is wrong, you just need more practice
Also, strip all the feathers off a shaft and shoot it. What does it do ? Nock WAYYYY left when you shoot ? WAYYYY right ? Nock high or low ? Porpoising ?
I can shoot bare shafts and hit the same spots as my feathered shafts.