[suicideneil]

12Xl on 6s is an unusual setup, especially for a buggy. I would say the cogging you get when crawling is normal- thats a very low kv motor for the esc to try and get spinning from a atandstill or low rpms. I would suggest more like a 1600kv motor for 6s lipo, and just gear it a little differently. Higher start power should help with the current issue, in theory.