OMG; I just couldn't see where to choose the main path. So I was like 150 + off, in my 1st tries. Let it sit, for weeks, came back today, and slowly did I get the idea. Then only had to optimize the last 2, for 100 steps. Great IMPACT, on me, here!
The 2 off is nothing "special", and since there is a true symmetry, it gives two winning route by doing the same but starting on one side or the other.