Really loved this London-esque trail route. Had some fantastic feedback from John Houston and worked out a few of the parts where there were chances to go wrong. Still went wrong on several occasions. There are several other trail routes and so signs tend to cross over with each other. Ver Valley being one.
It's a very fast trail route. Just a handful of gates to navigate. There are a few fields where the signs so missing and the last main field section before St Albans - check my Strava and John's - I still don't know how you do this part.
I did a bit more distance that the actual route but nothing that crazy.
Highly recommend this as it's so easy to get to Watford and St Albans from anywhere in London.