Yeah i actually thought that was a lamb before you mentioned its FQHH. I don't have any calf TOJ but my FQHH is thick and its definitely bulky compared to my other jackets. Its quite stiff and it can stand up by itself. Maybe the thickness is tailored to your build? I'll put up some fit pics when i get some wear into this. The colour isnt the same as wj4 though, mines much darker almost black.
EDIT: here's a pic. The colour representation isnt very good in this pic, couldn't get a correct white balance because of the mixed lighting. Its actually very very dark brown that looks almost black in shade (darker than goat).