So I'm getting a shudder on the 1-2 shift when at WOT. That's the only time it happens is this a common problem and a sign of something coming? I have just shy of 60,000 miles, I had the trams flushed last summer and the RDU fluid changed at the sa,e time. PTU has not ben touched. I'm going to go back to stock tomorrow and see if I can replicate it to rule anything funny with the tune. I'll be stopping in the dealership on Friday so I hope it's something that I can replicate when stock since I'm under warranty.