Any more details on the MK5 - what is the angle on the edge for example? I use a Sharpmaker which has 20° and 15° angles. You probably mentioned it somewhere but I don't recall - what is the steel type? ATS-34?
Details of the RSK Mk5 can be found at:
http://www.dougritter.com/rsk_mk5.htmThanks for the reply Doug. I brought the other information forward from your other page:
3Cr13 stainless steel (similar to 420-modified) is hardened to 52-55 HRC and 18° nominal high flat grind; pretty high resistance to corrosion; very easy to sharpen, even just using a found stone (a good feature on a survival knife IMHO). The relative softness in a blade this size should not be an issue - that's what the Mk3 in your main pack is there for!
I'm using a 15° edge on my smaller knifes to make them better slicers while the 20° edge is use on big blades which take more abuse.