I've had both and prefer the SC.
One LC I had was smooth as. Great razor. Another one felt somewhat more coarse (not 'rough' as such, just not as refined as the first one).
The SC does clamp the blade better, so 'maybe' less chance of blade chatter?
As always, you really need to have both!
Mind you, both my LC were Nickel, and my SC is Gold...so maybe I just like Gold and shiny?
Yes, if you look at the SC and LC baseplates you will quickly notice the SC base has a wider 'bed' for the blade to sit down on. It sits out further towards the comb (teeth).
I've sold both my LC but kept the SC.
Re the Fatip...maybe you had a version 1.
I bought the Picollo SE set (Special Edition). These are version 2 and are tamed down a bit.
The finish is still barely OK, the build is as rough as guts, but (once you make sure the blade is aligned properly), it gives a great smooth and close shave.
I put on a Muhle R89 cap, and then was able to use a RR Halo handle.
This made the razor better balanced (for me), and looks good too.
And that is THE cap/guard combination. I requires the small/narrow neck ferrule.I have both but find the SC is a smoother shaver than the LC. The SC seems to have less blade chatter (tighter blade fit).
View attachment 49090
And that is THE cap/guard combination. I requires the small/narrow neck ferrule.