i had real problems with Dixactol and would end up with terribly streaked negs with the 2 bath, and way too much "mushy" grain from the single bath - i did have some correspondence with Barry about the probs - his reply insisting that the developer offers the sharpest grain possible - but mine was definately mushy!
However, having recently tried out a pack of exactol lux, i am hooked. My main dev before this was perceptol, but exactol lux is much better in my book - It acts like dilute perceptol, the same sharp edge and grainless characteristics, with shorter times and the stain advantage.
A test message was sent out today regarding the re-opening of Barry's shop, so for those who do like this stuff, it will be available again very soon. I cant wait.