I have used them both. I prefer the Scrap Muk to either. The handle on the DM is a bit small for me. The balance on the S5 is a little blade heavy. The Muk is just right. And it doesn't rust, so it makes an ideal skinning and food prep knife as well. The beefy 4.5" curved blade can do it all. Of course, any of these knives will get the job done and take a lot of hard use. I have batoned thru hard oak with all three of them. These are just my subtle picky opinions. My favorite 5" blade knife remains the Ratmandu. I just wish it were in Busse's 154CM, which may not be as tough as SR77 or SR101, but is plenty tough enough for me.