smoking warrior!

today i fried my warrior 7018 while running a basic 4200 on 3s lipo. it was glowing red at the base of the capacitor when i drove the car by me, right next to my lipos! so i emailed the reputable person i bought it from and this is what i was told:
It was not the S/C but the Motor ,in this case 4200 for 6-8
cells . you ran 11.1 volt or = to 12 cells. Thats why you smoked S/C . For
Lipo you must make changes to R/C set ups . First A 99 amp S/C And sec. A
3100 Xl or 3600XL Lehner for this set up lipo. Or go back to 2S lipo
7.4volt lipo for the 70 Amp S/C. Send the S/C to BK in Germany, But if it
BURNED up it is just junk.


im no seasoned expert in rc but something does not sound right about this. a basic 4200 runs at 46620 rpm on 11.1v. i just wanted to hear your opinions on this matter because im having a hard time understanding this motor/speedcontrol setup not being able to handle 3s lipo. it was in a rustler, by the way. thanks.