Twocicle,
Thanks for the explanation. I have not change out the upper jockey wheel. But the system is running so smoothly for me, I am not sure how that extra step will help. Then again, I am only running 32t and not 34t or 36t cassette.

Chris,
The 48t outer ring is what I have on hand, so that was what I made work. The added shim is not that big deal, and the protruding fixing screw also help in the pin and ramp effects of a smoother shift.

I am not familiar with TA chainrings. Do they have pins and ramps or are they symmetrical? If they are symmetrical, can you rotate an outer ring around to get the indent on the correct side? I was already hesitant to go to 48t for the lost of the higher gear ratio but must do so for the 18t difference in the two chain rings. I am not sure I want to go to 46t.

CJ