i would say they are about the same you can put a bigger clucth bell on either and have more top speed but if your going to race you will wont more bottum and the matrix but if your going to bash i would still say the matrix high tourg metal geared bb servos and the car is tough and the 9.5 comes with alloy geared servos at about 49oz of tourge i hope this helps.

Dennis

Cen racing, TQ fuel