"Have looked at the Santhuff's, but was a little concerned by the 3.5 inch travel compared to 5inch with Afco's. What do you guys think about that for my performance considering I am footbraking."

Thats not a problem, each set that we sell is custom built to your ride height spec. Also that 3.5" of travel is measured at the shock, not the wheel which should equate to around 5" total. Mike