Yeah, it does it with the LVC installed and Lipo.....I actually tested the LVC with NiMH and and too does the same thing. But take the LVC out and no problems!!!
But, I went to the biggest LHS in my area (Fredrick) and worked with some guys there (3 of them) we tried every LVC they had and none of them worked correctly. We than called Traxxas, but they couldn't understand why it wasn't working. The guy on the phone said that the electronics "should" be the same. But it is apparent that they aren't.
Needless to say I was going to buy a regular XL-5 and the guy told me that the Tazer 15T ESC worked pretty good and would work with Lipo LVC's so I got it for $30.
I am going to replace the ESC today and give it a shot, but I'll keep my old XL-5 for stock spec racing.
So, word to all those with Slashes......go NiMH!
Or, take your chances with Lipo