These two have TKC boards.
Box Navy switches in this one make it my favorite. I'm tempted to bring it to work, but it may create a hostile work environment.
Box Royals. Bringing this one to work to alternate with a Unicomp Model M.
Still stock. Have to do some trimming in the case for a TKC board. This will probably be sticker-bombed and put to use by my kids. Have a set of Box Navy(alphas) and Box Pink(all else) ready to go.
The first is a newish G80 purchased off of Amazon. Case is easy to open(four rear tabs only) and has minimal flex. The second one is an older G81, it has two screws through the bottom as well as the four rear tabs to open. It has more flex than the other two without the screws installed. The last one is a tank. Four tabs in rear to open with additional tabs up front to increase the structural integrity.