hub

I'm running a rather powerful brushless motor and there seems to be more and more slop in the rear wheels (it looks lie it is at the hub level, not the arms). Bearings are holding up fine (Fast Eddy). Would aluminum hubs help with this? And if so, Hot Racing on ECX? Could the (stock) hexes also...

I have rpm rear hubs on my 1/10 ruckus. Also have team associated adjustable steering and camber links with ecx ball studs. I've been having problems with the top mounting hole for camber links on the rpm hubs --the ecx ball studs slowly strip out, like the holes are a hair too large...