Twas a good day, and good to meet some new people.
Following a somewhat disappointing run on the rollers (174bhp from a MK5 GTI with Stage 1 Revo), the guys at JKM were kind enough to fit the new DV I bought and cure the massive lack of power. Drive home was a world away from the drive down there! Guess I'll have to get down there for another run now that the problems are seemingly corrected to get a more impressive printout.
Thanks to JKM, thanks to Robin for co-ordinating.