SL
Would agree with you there. I was hoping someone might have had MD's new -525 blades, to find out how good they are. I have filled and faired my pma blades on my D. She now goes 8 to 10 kts quicker than before, almost back to md blade speeds. FYI
65 psi 120 kts, 70 psi 128, 75 psi 132 kts 80 psi 138kts
Certainly seems to lift more but cant say how much