Quote Originally Posted by MikeK
I have used rotary processing for some time and have had the best results where the rotation can be reversed.

- Mike
This is only a needed feature when the motors are too slow and uniform and the reel designs are not quite suited to rotary processing. Jobo--- clearly the leader in rotary processing--- in their last processor (the Duolab) did away with direction change, increased the rotation speed and used a motor drum interface that supplies a bit of "jerkyness". This proved to work quite well--- the fate of the Duolab was sealed by disappointing European market sales (in the US, by contrast, it seems to have sold better) and not functionality or results.