Hmm. I didn't see anything like that on the web site. They do call the current one "Slim-line II." Could it be that you have whatever came before that? Like... "Fatty Line I"?
I guess it might be "slim" compared with baja racks that have railing, etc.
Yes, mine was definitely lower. I'm not sure if they changed the design or if they still offer the lower profile one. I love mine and I can get in any garage even with OME lift. Mine came with two rails and then slim riser feet. I think Willys is a one PC design. Rail is the riser also.
It is worth calling them to be sure.