I rode it the other day .. you obviously had two or so large chunks 'missing' from the puzzle. i.e. that extra loop near the start and something I believe you refer to as 'triangle'?
Hearty congrats on a good effort though
I added insult to injury by having a big backpack and stuffed bar bag attached to the bike with overnight gear (visiting sister)
Still, it was a quiet and dry weekday so I gave it a slow once over.
Will come back again for sure without the appearance of a beast of burden.
and yes … very close to the motorway at one point .. if only all those S.Easterners coming back from S.Wales knew they were passing within 15-20m of prime carved singletrack.