Just to add some coments,
I tested the X1X with the stock silver springs (Im using BB 16mm) with 35/27.5 LOSI oil, the car was great and easy to drive, It was predictable and it had a good sweeper turns and also had the snap for the U turns. I made a spring change to white and the car was terrible, it felt unpredictable and hard to drive, I was fighting with the car to make it turn and stay on the line. The car was BAD, made a 4 laps before changing and my lap times were 2 sec of!!!!
Panther, when you say "rotate" you mean it can "U turn" very easy?
I also started with ChadBV2 base set up and worked from there to suit my driving style and track.
Remember that the TIRES are the ONLY thing hat is on contact with the surface and it is VERY impotant for your setting.
Read JQ colum # 5 fon neobuggy web, it is interesting!!!
keep tunning