No, there was a video PBusardo did reviewing the mini and nano. The original Subtanks chimney is too long, it extends into the mini's RBA deck and almost touches your coil, It could work but it would be uncomfortably hot..
Edit: I really like the Original in RBA mode because it actually gives a little bit of a tighter draw and more flavor. I have been considering getting the mini because the RBA deck looks like fun to build on