I picked up the SE (serrated edge)RC4 and I will tell you that the serration on the RC line up will out do any blade maker serrations,best I have seen.I like the serration for the fuzz stick factor for one example ,you can save the PE(plain edge) part of the blade for other duties and use the serratin for making fuzz sticks or fire sticks and you can also use the serration notches for the striker if you use a firsteel....and not have to remove the coating on the spine.plus if you need something cut like rope or web straps ,they will cut thru it quickly...I could go on but I think you get the picture..Thanks TTD