Hi Colin,
The short answer is, so far, yes! And I don't even have the right SUT for it yet......
It's big, ballsy and effortlessly musical in a way that even the 103SA couldn't manage, and works oh so sweetly with the Jelco.... Sonically (and even aesthetically), the Jelco SA-750D and Ortofon SPU Classic GM are a match made in heaven!
Marco.