cheers for the comments guys

. Ive only used the car twice at my small local (ish) club but I'm looking forward to trying it at the bigger indoor meetings like York and Worksop.
As for the shocks, Ive tried to copy the associated setup but I think I'll have to alter the rear shock position as it sits very low with all the brass and a lipo, even with tons of pre-load. The spings tend to bow and rub on the bodies too which I've never had a problem with on the 501 or DB01.
I might try the saddle pack chassis sometime but for now I'm just going to enjoy the car as it is and try not to wreck it too badly