RE: How important is paper tuning?
There ya have it. Gibblet or Bucknasty (from what I hear) make good strings. Parker is a lot like Hoyt. Make a fine bow but use so-so strings. Of course, if you're like most you didn't know this. Almost anything except Zebra is better than factory strings on most bows. I use Winner's Choice myself or Prostrings, but I don't pay retail as a staff shooter.
Pretty much there are two things I won't scrimp on when it comes to archery. One is arrows and the other is strings. A bow is only a launch pad for the arrow. A pin sight is just a pin sight. They don't change. Inferior strings change and arrows must be of good quality to shoot consistently.
10 shot groups? They must be crazy. I only carry three arrows in my quiver--for 3D or hunting, or practice. Any more is just wasting energy. And besides, I'd rather shoot one arrow correctly than flinging a whole bunch into nothingness. Groups don't kill anything.