Well.... after looking closer at my Mato motors I found one of them to be cracked in the back where the rear bearing rest. In fact, the shaft of the motor had pushed the plastic out cracking it so I had no choice but to replace the motors. For the most part they don't seem "too" much slower. It is probably me hoping for them to be slower more than anything but it still isn't anything close to the 3:1 set up YHR has.
Long story short, kinda slower, absolutely compatable, don't waste your time unless you have too.
