Nice to be appreciated! But the Trailbreak team did all the marking the day before, so I only replaced what had been sabotaged in the meantime (which happens at many events unfortunately, even on closed XC courses).
Yes a good mix of terrain types, there's quite a complex mix across the N Downs escarpment and the Weald basin. Not much point asking what tyres for...
Enjoy the training! I had a proper day out, set off shortly before 8 with a friend, we parted at the first split point. He did the full 40k route, while I did the 50k extension, rejoined, and then took the 25k short cut. That way we got everything covered well before the first riders were back (at Shackleford it was just me and I only just got back in front!).
Then I went back out backwards along the 25k to the Blackheath split point, met my girlfriend who was riding the 50k route, and rode the rest of the course with her. That meant I got to do the Shere and St Martha's section I'd missed first time round. The post-ride chilli and cake didn't touch the sides! Add on 5 miles each way riding to the venue, and it came out at 50+ miles done by 2pm.
Did the Gorrick race at Swinley the next day too, was a bit jaded for that