I've got a set of Meg-Mo's for my 36" walk behind. Hope these blades live up to the billing. I'm cutting once every 5 days and barely keeping up with the rapid grass growth. This was the first blade change on the new mower, The bolts were stubborn. My impact wrench (cheap coleman) didn't budge them so I soaked in PB blaster overnight and used a 4' piece of pipe to get them off. Now what? Once the Meg-Mos are installed, how should I tighten? I'm going to use some sort of anti-seize compound for sure. But which one? Also... should I hand tighten or use my impact wrench which couldn't get the nut off in the first place. Some cursory searches here suggest that either would do but this is the first time with the Meg-Mos and I'm a bit nervous about slipping.