I have both trinity motors, I have yet to use the stocker w/ my 7.2s I loved it when I got my micro monster, tripped people out at the track, and when I got my micro monster wild I made my bud just about cry as I "drag raced" him on an outdoor bball court and smoked his XXX t w/ a venom 15 turner it was funny as he was just bragging his truck up. I was surprised! I love my micro monster wild, I have extra brushes and so it it dies, pop new ones in, and order me another as they are only 30 bucks get another set of brushes, and maintain them w/ motor spray, they last a while. I may go to brushless in the near future but I have a XXX NT so if I want to go really fast I just bust that one out. I love it.