I frankensteined my little SI3 .20 with a Jett .35 and built a SI3 .60 with a piped SuperTigre S90.
The little SI3 .20 needs the sponson skin replaced on both sides due to the boat being way too fast. Even the fiberglass couldn't hold out. This boat has ran a confirmed 49.8mph, but now is easily capable of 55+mph.
Crispy - after I put a shorter rudder on the SI .20 and ran it, I couldn't stop giggling like a little school girl. It's stupid fast now.