It can work. Been there, done that. But you have to ask yourself if it is worth it. I never had damage, but there was a LOT of work to be done - and not just on making the fuel. I have the single-squirt injectors and that may be part of my troubles. I mixed with RUG, heated, and ran through two centrifuges. I removed a TON of sludge and made VERY clean fuel. The trouble was the carbon. Any color in the fuel is carbon and carbon does not burn. The trouble is that it looks for some place to stick to. It will stick to the glow plugs and the injector tips and whatever else is in there. The glow plugs are no big deal - it just makes them difficult to remove - but the injector tips will screw with the spray pattern and you will start to look like a mosquito fogger.
For me, it would take about 300 miles. Then I'd pull the injectors, clean them, change the timing, and go again. I kept 2 sets of injectors and I got to where I could swap them out in about 3 1/2 hours. I probably cleaned the injectors 100 times and went through about 300 timing changes. I even bought a tune but, alas, couldn't keep the coking problem away.
If anyone knows, for sure, that the double-tap injectors make a difference, I'd be interested in knowing.