Good to hear about the X2 being overall faster than the X1X. Just built the conversion in Feb and looking forward to finishing, then putting it through it's paces on the track. The only area on the track that other brands were difficult to keep up with was in the corner speed department for me, sounds like it's been addressed with the new Buggy. Can't wait to retun this month and do my best to put a Jammin Buggy back into the lead pack in my local area. Much, much practice ahead and learning the new performance characteristics of the new X2B. Reading all the posts (between three forums), sounds like it's best to begin with Chad Bradleys recommended set up.
JB