I am probably sure this is a common topic for 72mm owners.
I am still waiting on my AT72 (thank goodness I ordered it before the price increase). In the meantime I have both the 1.25, and 2 in optical trains ready. The highest power the AT will take is 143x, lowest is 11x. For low power, I have a TV 27mm Pan. I ordered the APM 31mm UFF. I do have Morph 12.5mm, one of two for my BT's. What is good high power for both optical trains? Thanks.