I haven't heard of the 3300MAH...But, what's interesting, the Losi car (XXX?) that just won the IFMAR Off Road World Championship was using 2400MAH Ni-Cads to power the car. I'm hearing thet the NiMH's are having problems with the car's motors drawing too much current too quickly, thus blowing out the cell...To show my age (sort of): I remember the hot R/C Car cell was the Sanyo 1200MAH SCR...
--dan