I ran the X1 for a while, and recently switched over to the X2. I had the same problem with the on power push with the X1. That problem doesn't seem to exist with the setup on my X2. Right now i am working to get the rear end to feel a little more planted coming out of the turns. My times improved when I switched to the new buggy too. I considered changing rides to the RC8B, but had too much invested in Jammin stuff to completely change brands. I am glad I kept with the Jammin since I like to test the durability factor of a buggy every now and then.
Stephen