RE: Did Tamiya change the apple to their TBS?
There was a thread that mentioned that it's an old photo of the early or prototype version of the current TBU. I don't know if it's a fact or not, but that was the speculation and the photo has been around a while.
Since the baffles are an integral part of the system, either that other one has them on the inside (which would be really hard to pull off considering how it's designed) or a lot of people are going to be upset.
There's no reason why Tamiya would redo the system design unless there was a vast improvement or it had serious flaws, with doesn't seem to be the case with the TBU.