Well, had some sucess, and some setbacks.
My wife decided to clean while i was getting my bow to put the new sight on. She grabbed the paper that compares your pin sight to for getting the proper insert, and added it to the shred pile.
I thought my speed with my arrow setup was about 215fps. So i put the 220fps insert in.
Sighting in at 20 yards was easy & straight forward. I was pleasantly surprised my groups actually tightened up some.
Going back to 40 yards, groups were tighter than with the pin sight, but shooting about 6" high.
Guess i'm going to have to break out the chrono.