Are all of the glow plugs operational? Even once running, a glow plug is still a hot spot making for smoother operation. Given your compression is low, glowing a warm engine is probably needed.
I'd dump the veg system and concentrate on regular fuel only.
So you are the guy at 2:40 + ( the good part starts at 4:17 7:40 , more fun stuff from 830 - 8:40

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https://www.youtube.com/watch?v=FXEFY48IDkE
See more cars in ,
https://www.youtube.com/watch?v=MpyQwy6uuK4