When I bought the boat new and in just a couple of months had one of the blades start cracking from the inside, took it back to the dealer and he said he would get it fixed at no charge and did. I bought a new prop for a back up and used it till the other prop came back.
Put that prop back on and have used it for 5 years till Friday, this rip is on the same blade as the old one because you could tell were they ground down the welds from tha last repair.