go right ahead then, up your pressure 5psi or 10 psi. Then add the rising rate of 1:1 to it. I run 22psi on some days, hmmm, that would give my standard injectors (if they were still fitted) a good, 20psi+ extra pressure. And people with the stock turbos, gonig from 7psi to 13psi, thats an extra 6psi, plus your claimed 5psi or even 10psi. 10psi to 15psi is not only a lot of pressure, but a lot more flow for these 15yo injectors..
You'd rather risk doing that, and blowing your engine, than getting new, fresh injectors?
Do you know how many GTR's and GTS-T's I have seen with stuffed injectors, running at standard pressure? Oh, but you're the expert. My bad.