nice shoe collection PB! I especially like the austerity brogue. I believe that CRU is crust, as mentioned. The FUN ones have a bit more antiquing, and are 'less matte' in terms of finish. I have a picture of the various swatches available in SC, and that looks to be the main difference.
Interesting...I used to wear nothing but black before, but now hardly wear black, whether it is for the office or for the weekend. I think my proportion of no-black shoes to black (just for work shoes) is at least 2 non-black pairs (some shade of brown, generally) for every black pair. I have a pair of the black brown in the full brogue, and it is one of my favourites in the rotation. On the Leather Soul website, there is a picture of it with what appear to be chinos. I don't really wear it with non-office pants, but find that it does work very well with jeans and certain non-formal pants.
I am contemplating getting a black pair of SCs. This is what I have in mind.
and this is a close second.....
I like the contrast of the grainy calf with the smooth finish. It adds a bit of visual interest. Interested in hearing your opinions.
(borrowed the images from MTO paris).