Which Saddle?

SLR's have a single point to sit on where it is comfy, any deviation from that point and it's shit. That's why I didn't get on with it. I wish the Romin was a bit prettier.

I can see why you think that, but it's not really the case. There's a sweet spot where you'd expect it to be (where you'd sit planted for the highest percentage of the average ride), but it's possible to get about 3 more comfortable positions - comfortable relative to the nature of the riding each position entails.

i) Behind the sweetspot works for (possibly aggressive) low cadence seated climbing with a low upper body, hips rotated slightly forward, 'deadlift posture'.

ii) Slightly forward of the sweetspot is good for short periods of relief/muscular variety where you might want to roll the hips back a little, or even for fairly upright seated climbing on the hoods/tops if transitioning regularly to standing (less of a large transition than from the rearward position mentioned above).

iii) Rivet, drops, sustained high power, blah.

^it's a saddle that needs to be ridden in more than one position, unlike a B17 or other hammocks.

(it's really intolerant of 'incorrect' angles though - micro-adjust seatposts need only apply)

It's funny, I think even this angle/sitting position stuff is personal with saddles. I always found the Romin to only have one position that 'works'. My SLR Flow is similar. Whereas the Regal, and especially the Regal-e, feels like it has quite a lot of fore-aft adjustment while still being comfortable. I find there's a natural middle point for most riding but with a really nice 'platform' you can move to at the rear.

I really wish they did a Regal-e with a cutout.