Boy have I been out of the game for awhile, gosh darn life keeps getting in the way. I have one of the IBU boards that I plan on installing in my Sherman, unfortunately these are no longer available. I also will be looking for another board in the coming months, I have had my eye on the Elmod too. I also am interested in Ken Olsens MTCU i believe it is called, not sure though if he is still making those, I might have to get in contact with him to see if they are available.
Cheers,
Wade