Ok...so from 23 to 26 .... I would expec the loose the rpm.... but not the speed. That’s just interesting you went up in pitch with a 4 blade. I felt like articles I read a while back which I can’t seem to find now.... mentioned folks holding the same pitch in a 4 blade when leaving thr 3 blade.... maybe going lower in pitch because of the extra surface area.

All great info. Appreciate it guys. This is what I’m looking for.