Decided to give one of these a go, I've been on a 143mm Romin for years and while it's been good it also isn't great. I've tried the standard Power in 143mm and had two issues- the widest part of the saddle extended a little too far forward, such that if I found a comfy place for my sit bones, the saddle "wings" would rub/dig in to the back of my thighs on the downstroke. The other issue was that the cutout is large enough, and probably more importantly, the foam is shaped such, that the edges of the cutout created lines of pressure, if that makes sense. I also tried a 143mm Power Arc, and while it was better than the Power, the curve of the saddle made the sit bone area feel like the support was pushing outwards (maybe a 155mm would address that).

After a couple sessions on the rollers, the Mimic addresses all three issues- the sit bone support is the right width and shape, no thigh rubbing, and a cutout without protruding edges. A marked improvement for me, YMMV.

Princess_Allez All my bits seem to still be there and my appearance remains the same, think I should file a warranty claim with Specialized?