I found for me what makes this level so hard is the "decoy" 2 off path is so good and filled with little tricks to make it shorter that make you think it's the correct path just slightly un-optimized, while the "janky" path that I was 4 off on that I assumed was the real decoy turned out to be the correct path. Hope this helps with neutrino, the last accelerator I am stuck on.
Amazing how many possibilities there are in this level. The best I could do was 8 off for the longest time, then finally broke through to a 241. From there I still had to iterate quite a bit before landing on the 239.
This is an incredible level. Also, play this *before* Neutrino or you'll cause yourself a lot of pain...it took me forever to see how the minute changes between this and Neutrino could result in that big of a cut. Really, really difficult to see the strategy that I was instinctively resistant to.
And even after you find the big cut, there's still an incredible amount of possibilities to try in a very small area. It takes some precision to untangle the mess, but it's a lot of fun. Loved it.