>I'm curious how close I am to "really know[ing]" foxpro

Well, you can't know everything. Not to get too philisophical, absolute knowledge, in my opinion, is unattainable. I would say if you can satisfy the people you work for and are willing to search for answers to things you don't know, then you're doing alright. I'm also a lone ranger in my shop when it comes to VFP (4th year) and i try to read as much as possible, although not all about VFP.