My mower is a 48" w/ 16 1/4 L x 5/8 center hole. This is the same as Bobcat and Exmark. So I was thinking of trying some of their blades here and there as I need new ones. I'm always up for trying something different. I've got 3 different styles of blades for it on the truck already. I was thinking about trying that Bobcat "offset" blade, The Exmark "wave" mulchers and the Excaliber blades. Anyone recommend a blade to try 1st? Does anyone have pictures of any of these blades? Please post them if you do. Also, Gravely has some cool blades. The mulchers and the marbain steel. Could someone comment on rather or not they are the same size and if they are good blades. Anyone use J Thomas blades? The prices are good. Are the blades? Thanks everyone!