Whats your take on the Ortofon SPUs?

Congrats on a lovely looking system. I briefly had a Ortofon Silver Meister SPU mounted on a Garrard 401 with a 309D arm. This didn't work for me for the reason you mention, alignment. The customised Mint LP protractor I have is optimised for the 309D but the alignment for the SPU is , I suspect different. Initially, I used the Ortofon supplied paper protractor to align the 309D/SPU and the sound was rich and glorious. There is a lot of discussion/threads on the optimal Ortofon alignment and the differences between Ortofon Denmark and Ortofon Japan on the PS distance. As I couldn't simply switch head shells , I sold the SPU.
Best
Pradeep

I use a Royal GM II on an SME M2-12R and had a Mono GM until I busted the cantilever. I'm a big fan of the Royal--it sounds rich like traditional SPUs and also, because it employs the Replicant 100 styus like the A90, detailed like modern MC carts.

Alignment is an issue, though, and inconsistent between SPUs, in my experience. The SME arm, fortunately, has a slide mount for altering P2S distance, which I find to be crucial. I have a Mint LP for the M2-12R; I'm able to adjust the arm so the stylus stays on arc. When switching to the Mono GM, though, I do to redo, which was a bit irksome. You'd think they'd be consistent.

I'm not sure I'd use SPUs if I couldn't make the adjustments afforded by the SME arm. But with that ability, I really enjoy them, and I'm planning to buy the new 95th Anniversary edition when it becomes available.

I should qualify my statement about getting the SPU stylus to stay on arc on the MintLP. (Too bad there's no edit feature....) I can get it to nail the null points pretty much exactly in the center of the (rather wide) Mint line, and it remains within the line for the entire arc, but it strays toward the edges at some points, which is inevitable without being able to rotate the SPU as one would a regular cartridge. Still, good alignment is achievable with the slide mount. Hope this helps.