JM, several years ago, I did a considerable amount of research and critical listening (auditioning) looking for a TT upgrade. The TT’s on your short list are both fine choices. In fact, both of them and the Marantz TT15S1 (designed & built by Clearaudio to Marantz specifications) with Clearaudio Virtuoso Wood cart and the VPI Prime Scout were on my short list just prior to my purchase. I was just about ready to pull the trigger on the P6 when I ran into the Mobile Fidelity Ultradeck+M (with Mastertracker MM cartridge). As you know, Rega is a major proponent of low mass design. Although any TT should be set-up on a rock solid surface, this is critically important for a low mass design like a Rega. Have a read of reviews of the Mofi Ultradeck+M (e.g. Julie Mullins; Herb Reichert - to name but a few). Better yet, audition one if you can. I’ve been quite happily living with mine for the last 3 or 4 years or so and wholeheartedly agree with the reviewers analyses, especially Herb’s take: "The MoFi UltraDeck is one of the most lucid-, engaging-, and natural-sounding record players available for under $5000. Highly recommended." IMHO, for under $5,000 you can get a different sound signature from a few contenders but not better. The Mastertracker is the best MM cartridge I’ve ever heard; even better than some MC. Most of my vinyl collection is from the 60s & 70s and has always been lovingly cared for. I’m in the process, now, of running them through my ultrasonic cleaner and treating them with LAST. As long as your vinyl is clean and well cared for (dust is the enemy of records, TTs and styli) and you use a halfway decent phono pre-amp, you will not be disappointed with the Mofi. It’s also a great value if you live in the USA. Good Luck and welcome back to vinyl!
P.S. I would recommend you put as much separation or space between your TT (or any TT, for that matter), your amp and pre-amp as possible.
P.S. I would recommend you put as much separation or space between your TT (or any TT, for that matter), your amp and pre-amp as possible.