They should have looked at the CVI counts as usually with the 4-3 downshift bump the underdrive clutch CVI should be higher then normal. It usually runs up because the pump dont have a good prime and when you start the car cold and put it in drive it will run the underdrive CVI up if it does not go right in gear from low pump pressure. And that will cause the trans controller to apply the underdrive clutch faster (hit harder) and it is the underdrive clutch that comes back on when there is a 4-3 downshift. I could do Quicklearn on some and it sometimes would help for a bit but if the harsh downshift came back 9 out of 10 times I had to put a pump in the trans and reset the CVI's (Quicklearn). Tell the trans shop you want to know what the CVI counts are and ask if the underdive clutch CVI is high but if the Dealer did a Quicklearn it should have reset the CVI so if you dont drive it much it may not show as high but if its still is hitting hard it might still show a high CVI count on underdrive. Ron