>The second 'B' should have never been a 'feature' on any of them

Wow... you some kind of typing nazi? LOL. Loads of people type B with the right hand. This idea that there's only one way to type is just a bit silly. I type C with my left index instead of left middle. It makes no difference whatsoever. I may even be a better typist than you for all you know. These are custom boards. You don't have to have the second B - just map is as something else and fit another keycap. It's not like there's a key missing or anything.