I recently started checking into this site. I read a post about using double blades. I would like to try it out on my Dixie, but wasn't shure if I needed a bracket to hold them in place. I have a 25/60" so do I use a smaller blade on top like a ones for a 52" mower and place the 60" ones on bottom. I was also cocerned on weather it would slow my blade tip speed down. So if you have any experiance with this let me know. And is it really worth it.