[ddvk]

rich20:

You are better off doing the return line flush with mixing of old and new ATF. I HATE those machines out there.. Some push old ATF with air, some with new ATF, god knows what pressure the fluids are pushed into the TC etc and which soleniod wiring it is going to affect or what old grime it is going to errate and plug the soleniods/VB..

I think you are fine, just keep up the routine for drain and fills moving fwd. Your investment is well protected.