i wouldnt say i had it 100% under control but thats more to do with my driving skill lol! And yes defo upgrade to lipo my brushless would just sit there cogging on my old nihm batts theres some great deals out here on them and even the chargers are not to expensive ive got a Turnigy Accucel-6 for only 30 quid on ebay and it charge your nihm batts aswell jut search it on ebay!