Wow guys, you post a thread with a question and 5 hours later, you get 17 responses. A big thanks to everyone who replied here, it has helped me with my thinking and decision making a lot. This sub forum always struck me as a particularly friendly one and your responses confirm that impression.
@Pàdruig your photos were very helpful and exactly what I was hoping to see. The sharpened blade length of the SDFK doesn't seem much longer but the stock thickness seems quite a bit more noticeable. The SDFK seems like a chonky one that could take pretty much anything. But maybe a bit too thick? I'm not sure.
ferider
your comparison of weights and prices was also very helpful. I was sort of zeroing on the more affordable of the two SDFKs and seeing that it basically weighs double the UF may have decided it for me. The UF seems to pack a lot of sharpened edge and durability into a relatively light blade. As a guy who will carrying a knife while humping portage bags around, a half pound for an extra inch or so doesn't seem like a good compromise for my purposes. But man, the SDFK still does look very nice...
Anyway, I'm lucky enough to have a bigger chopper that works well and perhaps the SDFK is more like a slightly shorter chopper rather than a more all arounder type blade like the UF?
Here's another question for the gang, especially to those who own both pieces: do they cut similarly? Is one or the other a lot slicier or thinner behind the edge? I'd still like to cut things at the end of the day, not just bash through logs.