Thank you all for your time and comments. If your ever in Cornwall this place is a must visit. Very scarey and dangerous though.
Leon- the Microphen was nothing more than me cocking up two films at the taking stage, and the need to push process. The general feel here on APUG was to go with Xtol, tough I didn't want to be saddled with 4 ltrs of developer left on the shelf. Quite shocked at how good Microphen is though, especially with Delta at 400!