I EDC a Leatherman wave that's used 4-5 times a week, and also have a SOG folder I carry everywhere. The SOG I use, like many others on the forum, for heavy cutting chores. The blade on the leatherman I use only when I don't have my SOG (rarely). When I DO use the Leatherman blades, I'm not worried about getting the blade out fast. This ain't a race, and I'm usually the only one with a blade anyway. I have a leatherman micra on the keychain as well. So redundancy is my motto. Weight I don't worry about. I'm carrying more around my gut than any series of blades would add up to.