RE: Reaction 54 control surface settings.
From Bruce's early IB the recommended control throws are as follows:
Ailerons 3/4" up, and 5/8" down
Elevator 5/8 UP and down
Rudder 1-1/2" left and right
Flaps full 60 degrees, down elevator mix with full flaps: 1/8"
He cautions that these are fairly active settings-so easy on the sticks for the first flight or two, then adjust throwns to suit your flying style.
I found these settings just about right for me.
John S.