Real life experience here. I have a scte I run on a medium size indoor track. I have the hobbywing sct pro Esc and had it paired with the tekin 4600. Had good power but felt like I needed a little more. Heard great things about the hobbywing 4000kv and that it was stronger than the 4600 tekin. So I splurged. In my 15+ years of rc racing that very well may have been the best investment I ever made. The hobbywing 4000kv is so powerful it's almost cheating. I ran for 10min at my track and we have a fairly large triple. With the tekin after about 4-5min I was unable to make the triple anymore (yes info realize that also has to do with my battery discharge rate) same truck same batteries same everything just the hobbywing motor made the triple lap after lap after lap. And even after 10min still came off the track at 130. The motor is an animal.