Ironically, the first Salomon AC Winter race went by there. I saw that short-cut on the map, went for it and asked a property owner if we could use his backyard. Not only did he say "yes" but he also told us about a flagged route to the reservoir, immediately on our route! It was a proud navigational moment.
Nice! Coincidentally, today we were remembering your route choice in another Salomon Winter AC when you saved some trail running by entering Glen Haffy through a property on the northeast side. There is a wide, mowed trail right up to the CA boundary so the route seems to have become popular!