I havent tried j concepts on a 1/8 before, but I did run them on my sc and there very good. So I may try them out on my buggy soon. I mainly run AKA. I 90% of the time run cityblocks. But Im really starting to like the Impacts. I just dont have much luck with proline, The Calipers offer good traction, but they wear a little to fast for my liking.