Taking foot off peddle and reapplying thing....that might be another issue altogether. I believe that is the drive by wire issue. When we step on the accelerator, the ECU tellls the TB to open...when we let it go and reapply, there is a lag between the ECU telling the TB...the closing and opening can create that problem...I don't have that issue that much any more after getting first getting a grounding kit then after that decided for a tune and messing around with the Torque management a bit...no more jerkiness. The early V36 had really sensitive acceleration at certain points. My experience anyway...could be wrong