Hello good people. I was thinking of trying something different this summer when i can switch over to my mulching mower 42"and leave the big Walker GHS in the garage. I have been using the standard Walker setup of four blades, one high lift and one Walker flat blade on each side. They seem to work ok .. very little blow out, etc. but they seem to go dull alot faster than when i just use the high lift blades with the GHS. Changing the blades only take a couple of minutes but i sure would like to get a few more mows before switching over. What have you been running with? thanks!