The Enforcer flies great. It IS different from flying conventional planes, however. Mine originally had a ST 61 that I changed to a ST 75. My guess would be at about 100-110 mph with the 75.
They are big, and a real pain in the keyster to transport, but look awesome on low flyby's!
A couple pics ( I have since given this to my Son-in-Law as a "Welcome home" gift for his safe return from Iraq)
Gary