I have not had any experience with the MMF-7, but I recently purchased a P-25.
The set-up is not difficult but it is exacting. Take your time and you will be rewarded. I found that with my cartridge I had to retrofit the arm with a verticle adjuster (none on the stock Rega) and went with the "easy riser", it worked great.
The steps I follow are 1) set the arm parallel after loose installation of the cartridge, 2) set the cartridge overhang and alignment, 3) set the tracking force, 4) clean the record, and 4) enjoy.
Best of luck, Dave.