I only know what I've read about the bayonet.
The ZT100 is a rockin knife. Like the ZT200, the handle looks a little weird, but fits my hand perfectly, locking the knife into place in a variety of grips. The texturing on the scales is one of my favorite - grippy without wearing my skin out, and durable (I have had some G10 scales slick up after extended carry). The palm, guard and butt swells on the handle are great. The handle is a little thin/not hand filling, and that is fine; The knife sits solidly in my hand, without trying to turn, even with heavy strikes. The size and weight of the knife are excellent - heavy enough for light chopping (I've split pieces of firewood and hacked though 1-2" branches), but not so heavy that I don't carry it hiking or backpacking. The ZT200 was my primary EDC knife for a few years, and I traded it for something that was a little sharper - the grind is a little thick. This does not seem to be an issue on the ZT100. The blade is just a little wider, allowing for a slightly more acute grind, while maintaining a generally tank-like build. While splitting firewood with this knife, I LIGHTLY brushed it across the cargo pocket of my pants, and left a nice sized cut. Intentionally cutting things, while putting any significant power into the it results in fast, deep cuts - this knife is SHARP.
For general hacking, slashing, cutting, I love the recurved blade. I have not tried using it for any significant woodworking, and probably won't, since that is why I have Scandis. The ZT100's point is nicely aligned for poking, and combined with the grippy scales, 3D handle and adequate guard, I have no qualms about delivering full-force thrusts with this knife. The only issue I have had with it, was that I jammed about 1/2" of the tip into a log, to pry out some smaller pieces. As I suspected would happen, the tip bent a little (probably 3mm off true at the tip). What I did not expect, was that when I took it to Kershaw, they bent it back to true, and told me that if it happened again, that they would probably replace the knife, as the ZT100 is meant to deal with abuse. The sheath system is very cool - it allows for a variety of carry positions. I have seen better sheaths, but it would be foolish to waste money replacing this one. It does it's job well.
In short: the ZT100 is an excellent heavy-use knife, with a solid sheath, made by a company that stands 100% behind their products.
