Thanks and is carbon fiber pretty easy to work with? What kind of tools do you need to cut it? I got access to a mill and lathe so I was going to do the main chassis in aluminum and make battery holders like on the G maxx chassis, but out of lexan and lower them like on the G maxx (and use the CF G maxx batt straps) so it has a Low COG. But I would really like CF but is it hard to work with? and where online can I buy it? Thanks for the help and I think ill go with the 9920/9XL sounds pretty damn good and its pretty reasonably priced.