Here's my report. I don't usually like to be secretive about routes, but since Andi had a big part in both the route and adaptations, I will respect his request not to share it. (unless he gives me permission)
It was a T4 start and a Chesham finish. The Heathrow loop was quick, and I think the T5 train to central London was also fairly nippy. The first run of the day (to Olympia) went well, Andi really did provide great motivation which got me going quicker than I would have done solo. Who knows if we'd have made the 06:06, it simply wasn't there, and we had one of the longest waits of the day, until the first Olympia train of the day arrived at 06:25. This obviously put us behind, and we had to cope with later connections later on.
The other 2 of the big 3 were done without massive waits, but as Andi said the WvH train was only a short wait because I had time to double back Aldgate.
For the extremities, a remarkable number of buses were caught, some better than others. Wimbo was done on the 93, Andi reckoned the Tram would be better which meant the first 93 went by (as I was hobbling quickly between bus stops) which meant that as the tram was 8 minutes away, the 2nd bus was better than the tram. It was a shame we didn't catch the first 93 by waiting just a little while at the station.
Cockfosters to High Barnet, very frustratingly just missed a 307, I was perhaps 20 seconds too late. Ended up running bus stop to bus stop and eventually caught a 184. Mill Hill East was an 8 minute wait.
I had to do the Harrow run in 12 minutes and succeeded. This was painful. At that point in the day I would rather have been in bed sleeping. Instead, Andi was being a slavedriver and telling me to get a move on!
Brixton DB was very nice
A support person would have been useful at Upminster, telling me to sprint for a train. By the time I worked out which one was first it had left. It would have been tight anyway though.
Watford DB was nice, Andi reckoned I shouldn't have made it. Nice guy opened the doors directly across the platform which was nice. Told him what I was doing.
Chiswick Park was second worst wait of the day (not necessarily longest), as a train that should have been in service wasn't, (passenger incident) and passed the station empty.
Andi getting ahead for Stanmore was great, he managed to get me straight on an Edgware bus! This was when I discovered that my ticket didn't let me through barriers, though it didn't cost me any trains. I had to crawl under the baggage flaps at Northwick Park, a lady in the office looked at me and I desperately shouted and showed that I DID have a ticket, and I was fine. My mate Seb had to do the same crawl-manoevre last attempt.
Epping DB was a little while, so I asked the ticket office lady if she could reprint my ticket. She said no. Sigh.
Central to Vic was done on the bus (!). Andi suggested Wood Street and the bus was perhaps seconds quicker, although my lack of knowledge meant that I could have made the bus time shorter by changing buses. Got stuck behind a lorry reversing into a goods entrance perpendicular to the street.
I was a bit lazy doing the Kenton and Ickenham runs, but I was shattered by that point.
Change at Chalfont for Chesham was tighter than I expected, I panicked when the trains arrived simultaneously, but there was in fact plenty of time.
Richmond could have been better, again a support person there may have been helpful, as I missed an Overground going out which would have been tight if I had have been able to dash straight for it. Then again, I may have missed it anyway.
Also, a remarkable number of trains were going to the destination I wanted! When I wanted a Richmond, H&W, Wimbleware, Uxbridge, Watford, Epping, Cockfosters, Charing Cross branch, they were all there. The exceptions were Aldgate, where an East train came first, WvH when it was a Hainault terminator first, Amersham (a Chesham train first), and the Bank branch which really isn't bad.
Andi was incredibly helpful- I appreciated his strategies, timing and door knowledge, his motivation (especially for Olympia and Harrow), his scouting, and the refills of water bottles
I very much enjoyed doing this again- even though I hate running! It was very satisfying to finally complete and I am proud to be a part of the full network club. Even if the time is below average, it is still good to see my name on the leaderboard. I would love to do more challenging in the future, both the full network and the alternatives, but I think it wise to stop spending quite so much money on train tickets for a while!