Yeah mine goes away once I drive the car for a few minutes. I figured it was just something do with the fluid. Maybe that'll be my incentive to go ahead and find the time to get the BG in lol.
I'm in the same boat. 17 GTPP with 2k miles. Mine does it on the 2-3 shift though. But it only feels that way on a lazy/easy shift. Also curious if it's the tranny or just a fluid issue. I have the BG SyncroShift ready to go in just have to find the time to get it done.