Hey Dan,
Much of the information out there on these string trackers is memory based for a long time ago and that may be where some of the issues come from as far as accuracy is concerned. My knowledge comes from making some of the simple mistakes way back when. With the resurgence in interest on these string trackers, I just want to try and let my mistakes 20-30 years ago help other from repeating them. I make a GREAT guinea pig, lol
The two biggest mistakes (mentioned in my string tracker set-up video) is not pulling out 100 yards of line to reduce 99% of friction before the first shot and forgetting to take the cap off before the shot.
Leaving the cap on will only result in the arrow slowing down (tested a bunch of times) and the cap popping off at the shot. The real problem here is after it causes a miss you look down and the cap is off. The tracker is then blamed because there is no way to tell you left it on.
Good discussions here- as always.
Take care.