good luck on the pavement our F-8 and RB handle well on hard pack ...with flaps down on a touch and go ya have to hold the tail down ...not as bad on the RB as im using a 15.75" 3 blade the F-8 had a 21" prop and had scale prop clearance so you had to keep the tail down or else.im using as long a strut as use ,the tire barly clears the inner wall of the wheel well. the longer the strut the further fwd of the C/G the wheel will be .