(10 years ago) 6 off is the best I can do, in over a 100 tries. Very good & hard level. Edit 1: Finally I got an idea, but it's a 6 off, again. :S Edit2: Yesss, in 146th try I found a 2 off. Edit2: TWO different 2 offs, before I got it! GREAT level, with tons of possibilities! 155 tries & world complete, now.
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EDIT 2023, 2nd April - finally rebeaten. This time it took me 32 tries. And I loved my 307 path the best. :))