Initial impressions probably took as good a route as I could.
One minor wobble looking for a snicket too early - might have been ok in daylight?
Easier being a straight 20 control, any order event, still needed to work out routes though and there's always one or two "out on a limb" that need a bit of extra thought.
Still, had a plan, stuck with it, seemed to go ok!
Map, routes, anal. later....
#143 / #145 / #146 better #143 / #146 / #145 - saves 60 metres / 20 seconds
Going N. from #146 then anti-clockwise to #130 saves 140 metres / 45 seconds against my route E. out of #146
last loop better #133 / #134 / #136 saving another 40 meters / 15 seconds
....so just shows you, savings to be made!