The blades on my Husqvarana PZ6034 measure 21-1/8 x 2-1/2 with a 5/8 hole. Any reason I can't run a G6 gator blade with the same measurements but 1/2" wider? Not real thrilled with the blade life on the stock blades which have been run maybe 16 hours and just got their 3rd sharpening and probably no more left. we've got really sandy soil which just kills blades. The Gator blades my dealer sold me are fairing slightly better but I think they must be G3 blades.