This is probably my favorite solve from the bunch, and here's a part of my thought process:

My pareto has 12 solves, which I'd categorize as 4 fast solves, 4 cheap solves and 4 sum solves.

The fast solves are 27, 29, 33, 38C, these seemed to me like the most obvious 'cheap' cycle counts.

The cheap solves are from 50-80G, so 1 and 2 arm solves, while the sum solves are the 3 and 4 arm solves from 90-120G.

I ended up with only costs that are multiples of 10. The only other cost I thought had potential was 65G, with 1 arm 3 track, but that solve ended up not even being faster than my 60G.

Honestly, because I've had some of these solutions for a while and couldn't think of how to improve, I feel pretty good about my solves. Hope to see what I missed on stream