I have a mini Digger and BTW congrats to Pavement on getting his daughter in the hobby but anyways i wanted to know.. which would be better i want torque but able to hit atlease 15 to 20 mph would the 540 20t be good or just stick to the the stock 550 12t i just burnt up my first 12t motor it has been 3 mouths now...i am going to go brushless (1406 4600kv mmp) but i want something just to play with for now till i get the money!!! and i need it to be able to work with the XL-2.5 stock Esc Thanxs