Well, that one was of the type "magic" for me, as in I solved it, but what I did different between the route before the win and the winning one? Not-a-clue... :D
I regret that one part of the level is for decoration only (as it's obvious that it can't be used). To make it plausible would have increased the difficulty.
This is a GREAT level! I was trying and trying, but always 16 or 12 or 10 or 8 or 6 off. One time even much more off (and it was not in my 1st try, but I was getting desperate, heheh). Finally, in 25th try, I solved it. :) Great level, indeed!