I'm pleased to be in but had to persist on my fiddly phone in a service station sunday afternoon to get in. There are still relatively few 50 and 100 mile trail / hill (not road / canal) races in this country, though there are those with quirky ultra distances distances like Fellsman, Bullock Smithy, etc. If the popularity of this still young event is representative of the appetite out there though, there will be more in future. Systems probably do need developing, ie a London Marathon style lottery. Also I was surprised (this being my first L100) that in this day and age the stated qualification requirements clearly did not filter people at the on-line application stage, as you're given a free-form text box to write down experience. I guess they can subsequently chuck out anyone whose experience falls short