Got a friend with a 30 Eliminator cat with 500 EFI's, he runs 32's and 34 bravo 1s that are labbed and never hurt them. Bought a set of 5 blade Herings and thew a blade off. It thoughs a monster rooster tail so I know the drives are high. He puts about 100 hrs a year on it.

are the props showing any signs of blueing ?? if so they are being over heated, I know sounds funny but have seen it, cavitation causes the water around the prop to boil and if bad enough overheat the prop causing the cracking...Rob