RE: p.o.i jumping 6" to 1 foot at 15 yds
Update time.
After restringing the bow with 452x, and putting probably 180 shots through it, I think all is set. I may have some fliers do to me moving my eye a bit behind the peep, though. I worked with another dealer while using his indoor range today and he gave me some tips on things to watch. Big one was using the peep and my front sight like a diopter setup on a rifle.
Arrows all stayed grouped nicely (well, except for test shots with blazer vanes and my broadheads....lets just say that they weren't quite enough to stabilize). Blazers seem to work ok with field points, though.
Broadhead tipped arrows (with Flex Fletch) fly same poi as field points.