just curious, why did you switch out the stock motor for the tekin?
They say a good mechanic only needs 2 tools - WD40 & Duct tape. If it moves, and its not supposed to, duct tape. If it doesn't move, and its supposed to, WD40.
if your going that far you should go for a suspension conversion kit from HPI as well as the aluminum big bores.
sounds like my dream flux tho, keep us posted!