[A couple of years ago I was walking down the halls of my university on a weekend when they were hosting a high school debate tournament, and I heard many of the same arguments we were making in the 1980s. It was frightening to think they're still running "countercyclical financing" and the old nuclear annihilation disads.]
Back on topic, there are cases where inversion is better than rotation. Stand and low agitation development and highly dilute developers that oxidize quickly are two that come to mind immediately.
The TAS rotates the tank a quarter turn on each inversion as well. It would be ideal for semi-stand development, and in fact one customer asked for the maximum process times to be extended for just that application.
Originally Posted by David A. Goldfarb
Peter and Andy - no offence taken I assure you :)
I think Robert at FotoHuis has one of these. I seem to recall seeing it as part of his setup for C-41 at home (outside during a hot summer's day) and I think he uses it for his Rodinal lifespan tests for consistancy too.