I find this level good fun. :))
If I look from the ''6 sectors perspective'', I still have troubles in the last one (currently have it at 367).
EDIT (a year later): I finally found those last 10 steps. :O :))
I like to work on it, but like Alazeh, I'm for now stuck 10 off. It seems to me that I can optimize only the last section, but I'm not 100% sure.
*some days later*: 6 off... I don't give up :)
*some minutes later*: YEAH! Got it!
Conclusion: For me, it's not one board, it's more like two puzzles and in between, "blank" sections just here to link the two interesting ones together. The level could probably win a lot by adding some puzzle in the 4 "decoration" sections.
It was fun but tbh some of these should have been properly tested as their own level. One good section has two solutions, one section is pointless, one has multiple solutions and there is one really interesting section.
Overall the combination felt like it wasn't necessary.