Just an update to my own thread. I figure I'll respond to myself with what happens so that if someone else has similar experiences they can relate.

Bare shaft paper tuned last night for about 2 hours in the basement (wife "loved" it - again!) from a range of 7 yards with bullethole end results.

My rest went up about 1/8" and 1/4" right! I think it paid off so far since out back my rightward drift at long range disappeared. I could also shoot 3 inch groups at 20 yards with bare shafts - they were about 3 inches high. At 30 yards with a bare shaft I'm hitting 6 inches high and 6 inches right with 9 inch groups. I still have some work and will be out at some point bare shaft paper tuning from longer ranges. The shafts are also hitting tip high/tail low. I've gotta read the Easton chart to figure out what this means, but I think I may have the rest a little high.

My goal is to group bare shafts well out to 30 yards. The changes in rest position are getting very finicky and you almost have to look for lines within the line to positively affect flight. I almost wish I had gotten the micro-adjustable Drop Zone now that I'm at this point.

Fritz