I did the Ditchling Devil as a DIY by GPS last year as I missed the calendar ride. The process was pretty straight forward although at one point my Garmin came off while I was going down a gravelly descent. Luckily it was all fine. Best thing was that I didn't have to worry about controls and could stop whenever I wanted. Paul was really helpful via email and pretty much walked me through the whole process, apart from the ride of course.
I did the Ditchling Devil as a DIY by GPS last year as I missed the calendar ride. The process was pretty straight forward although at one point my Garmin came off while I was going down a gravelly descent. Luckily it was all fine. Best thing was that I didn't have to worry about controls and could stop whenever I wanted. Paul was really helpful via email and pretty much walked me through the whole process, apart from the ride of course.
This year I'm doing the calendar ride.