I got a Cub Cadet Uktima Zt2 60" and I accidentally hit a metal pipe the first day I got it and replaced a blade. Well, I am running into some issues...I don't know if I am screwing up or these are some cheap blades. I do accidentally hit some limbs from time to time. I do hit ant beds at times, but trying to push them with the deck to the side now. And sometimes on a slope the blades might hit the dirt some. But something is screwing these blades up...bad. I have pictures attached. The blade that looks not destroyed is the old one I bent hitting the metal pipe. I noticed these blades that are messed up and the other one still on my mower has some tiny holes in them. Yet the one blade I bent in the picture below has no hole in them. It looks like whatever happen cause the metal to RIP up toward that hole What do yall think? Cheap blades?