yes, I've used the dive caddy, the ForceFins fit better than any other fin, I've put everything from AL Blades 2, jets, Bios, Quattros.
(neon yellow).
Cool, I'll keep a lookout for a pair. My current quattros work but... just don't fit well, at least not after hauling my bag around on my back for a few hours.
XL might be a bit large though. I wear a size 9 nike/8 business shoe/41 euro which puts me in ML or L with a my deep see booties as per the website. I don't do cold water so I think L plus a comfort instep will be perfect, or worst case the quattro fits with drysuit boots.