Don't discount the ATF7, it's an excellent cartridge and was a bona fide bargain before being discontinued. It has a 0.2 x 0.7 tip, which is not far off the AT microline. I run an OC9XML and the F7 is really not that far behind. The nearest alternative today is OC9XEN, but the F7 still has a better tip. It should shine in any of the stages mentioned: I ran it through a Rega Fono MC at one point and it performed superbly well. In fact, it supplanted a Rega Exact and an AT440ML (540ML today), both fine choices, but both lagging in terms of transparency, definition, grip and so on. Or course, all that is contingent on the number of hours it has seen.