After reading the post about the injector port blockage and your hard starting I removed my injectors for a look see. I found the same blockage in the head below the injector in my N/A engine. It was a dry crusty material tan to brown in color. The injectors are spraying in a narrow pencil pattern. I can not tell the breaking pressure yet as I am waiting for my tester. The time line story of this engine follows:

engine cranked and ran well on diesel,
started with a blend of WVO and unleaded....in the first few hundred miles it did fine, then hard starting and filter plugging was getting very bad, advanced the timing 4? and the cranking improved greatly but the filter plugging still bad. At about 1500 miles on WVO I decided to try WMO blend.

I left the timing advanced and with the WMO blend it cranked better and no more filter plugging.....about 6000 miles so far on WMO blend on this truck.....

Now finding the injector port blockage and removing it, I thought crap, better check the compression. When running the WVO I checked it and found about 400 lbs. across the board and concluded the low compression was a big part of the hard starting. Now the compression reads about 450 lbs. across the board. Now the Big question is the compression increase due to carbon build up or the WMO sealing the rings???

After cleaning the ports out I installed the pencil spraying injectors and it does start better than it did.

With all of this new info it has left me questioning some of my conclusions about using WMO or WVO in a blend at this time. After I receive my injector tester I will start from scratch and see if I my conclusions were correct or not. The turbo engine now has about 2000 miles on the WMO blend and starts and runs just as well as on diesel. I never tried WVO in that truck.
Suggestions welcomed.
crossbones