Interesting. A call into Alden or Horween may be in order. To me, the pictures of the leather at Jcrew look significantly different than the LS and Leffot pictures. It could be function of photography, who knows. If you can pebble calf and you can pebble shell, I don't see why not you couldn't pebble CXL. Will report back what I find out.
Check with MrDv he has that boot, like Reppie said I think they're all the same boot with different sole,eyelets etc.