I ran the X6 on saturday with the Hot bodies shocks and the biggest holed pistons they do, running 35wt and a orange spring front and 30wt with pink spring rear. The car was awesome and had loads of grip. I got the 78 spur too and lowered the gearbox, this made a huge difference to the way the car turned into the corners. The X6 is getting better all the time. And it resulted in my best Nat result of the 7th in the G too.
It was so easy to drive, and could've been higher up too if I wasn't attacked in the fastest run which resulted in the plastic nut (that holds the shock on) being stripped off, making the shock come off.....boooo!
Good stuff though.
Without having to go and buy a new set of losi shock (which I don't want to do), I think the HB shocks are as close as you can get.