i am chasing a set up for my elec mbx6t. i have a tekno chassie and a tekin rx8 running a 5c set up. med track smooth to med surface, small jumps. any help welcome. my nitro set up is barry pettit set up with a couple little mods. how much heavier should i be going in my set.http://www.rctech.net/forum/attachme...0-20pettit.jpg