I never used the 3 blade but have used the 2 blade and they are pretty devastating. I have a friend who used the 3 blade and did not like them and is using the 2 blade this year and is very happy with them. On the other hand, I know there are some members on here that use the 3 blades and love them.

My view, if you've got them, use them. Just make sure they are not the ones that were recalled. Some of the 3 blades were recalled but that was some time ago.