So had issues for a 4 month stretch with my Limitless and recently figured out and got the issue fixed thank god! After pulling my last PB of 138mph I had desync issues on any 8s pass I made above 125-130mph. Thought the issue had to be either the motor or esc so switched out both and still had the issue. After changing almost everything on the rig and still having the issue I was about done and ready to give up. I'd spent a lot of time and money on new xlx2, 1717 motor, bearings you name it with no avail. Then after going back through my detailed notes and build thread on the Arrma Forum I realized the issue started after I went to the stock length titanium Scorched center driveshafts I just never considered that to be the cause. So changed them out for a new Pinocchio spool setup with shorter and thinner center driveshafts and like magic the issue went away frustrating to say the least as could have saved a lot of time and money if I'd have just considered it and changed them months ago but again was never a thought. Anyways first pass testing the new spool pulled 122mph on 6s for a 2mph gain over the Scorched shafts at 120 and car ran smooth. So went for it and made an 8s pass to see if the issue came up and it did not, again car ran smooth and pulled a new PB of 144mph for a 7mph gain over the Scorched shafts at 137mph and did not have the desync. So here's the pass and now that I'm back on track and cars running great should start pushing into the 150's soon