I am needing to get some replacement blades for my 7 iron deck (48"). I dont want to spend alot but I want something that will last. Also, Do the g6 gator blades do good at cutting bahia grass? I have a 3 acre yard that is all bahia and I want something that will not leave any sprigs standing. Let me know the best priced ones I can get and where. I have used oregon in the past and was fairly satisfied with them. I dont really see the need to spend over 70 dollars for the John Deere manufactured blades.