I didn't have much time to look through your tune but from my glance at your datalog, I noticed you have a pretty high Acceleration Enrichment. If it was me, I'd probably look at the Accel Enrichment table (TPS based) and decrease those values a bit. Use like 1/4 or 1/3 of what they currently are and see if it helps make it a bit more crisp.
I appreciate it! I actually just stuck a really rough AE value in so I could drive around the neighborhood for that log.
Even with the AE disabled my stumbling issue persists. I will drop that AE value down for sure though and see what happens. Thanks for the quick reply!