Car is SRM K24 RS6. 044 Fuel Pump, 52# EV14 at 4 bar. 85mm MAF. Fueling is dialed in (KRKTE, TVUB). Car runs great and idles great. When decelerating I have timing oscillations mostly notable when in neutral and clutch is engaged and slowing down to a red light at about 5 MPH. The car sounds like it's misfiring but fueling is fine. These oscillations are responsible for the misfire like stutter. The car completely stops stuttering and idles perfectly when vehicle speed is zero.

Relevant info:

KFZW/2 is stock M-box at low loads.
KFZWOP/2 is stock M-box.
KFMRES is stock M-box
KFMRESK is stock M-box
KFMDARO is set to 50 at high loads to prevent torque intervention.
TMNSMN is set to -48
TANSMN is set to -48

Here is a picture that shows idle timing following ZWSOL and jumping to ZWOPT when vehicle speed is slightly above 0, this causes the stutter. Is there any known method of fixing this problem? Thanks.