Was doing some practicing brake boosting from a dig and shifting into second gear the trans would seemingly shift, then shudder for a second, and then what if feels like shift again and take off as normal. This started to occur a few nights ago and hasn't been consistent but has done it a handful of times since it started. I've done some searching and reading and i'm a little confused as if i should be diagnosing hard parts . . trans,PTU, TC, or address the issue through the tune. The car only has 14k on it and has only been tune for about 3-4 weeks but that doesn't rule out any hard part failures. I'll be loading the stock tune again soon to see if the problem still occurs at stock power levels and trans settings.
What's the consensus from others who have experienced the "shudder"? Was it a tune issue or a hard part issue?
TIA