Went straight to 55 as I guessed the trick correctly but I can see this being sneaky. Nice! Finally solved this today. There are like 3 or 4 different setups that optimize to 2 off. Why that particular one is faster...I do not know lol Somehow got this first try on returning to it today.
Incredible setup here. This one punishes you for overthinking it. really nice optimizations. Interesting path options.