Had a go on an adventure whilst there and as a result would do it all on a 1200 now (I didn't expect it to be as easy as it was and I was an off-road virgin) they weren't around when I last went. Rumour has it an HP2 will be available to try - Mr Pavey's vehicle of choice no doubt.
Did knacker my ankle though - their boots really aren't up to much.
I wouldn't worry about stuff being water-proof either. You get so sweated up you're grateful for the rain.
I planned to do it last year... but kept procrastinating... then they were fully booked - so stop fannying about and just book it NOW!
I booked for March this yr and couldn't find accomodation... but then had to change date (for other reasons) and am now booked for the Easter w/e in April. Thought I'd never find anywhere to stay that w/e, but got in at the Abercrave no probs!