I have the "clunk" as well..interesting that you have it with the one piece driveshaft.Interesting..might try that, Jon got my shifting pretty good, However I still get a Nasty Clunk sometimes when driving slow and coming to a stop..thanks for the tip!
My Only other complaint about Jon's tuning is the 800rpm idle...He says its neccessary with the Blower cars...idk
I get a clunk from a delayed shift from time to time in traffic,,Useing the hill management it does not happen..In hill management it not only locks out 6 ,,It delays shifting a little longer and the shifts are a bit tighter..I have the "clunk" as well..interesting that you have it with the one piece driveshaft.
My car had the clunk too especially when you are coming fast to a stop. I sent an email about it to Justin and sent me a new file. The first tune that I purchased from Justin was great except for the clunk but now he also changed the fan setting and when I asked he said that it's more aggresive setting. My thing is if the timing was not increased(don't know this) or anything else why change the fan settings? I'm a little concerned with the fan running for extended periods.