I was playing around in my workshop this a.m. and came up with this idea. I think it could solve some problems, such as cross combing and using a sugar board on a TBH. By altering the topbars to allow for bee space it makes supering easier too by placing a tbh nuc with no bottom on a modified cover board. Below is a link to photos in my dropbox. I call them Colino "I" Bars or scrap lumber if the idea doesn't work.
https://www.dropbox.com/sh/zco81n781t932rc/9KZDSjEvdw