Agree on the chunkiness of the knife but man its solid. My flipper flies out smooth with a light switch flick. I want to see a comparison on the manix2 vs 300sn. I have the lightweight manix so I couldn't really compare the two knives
Greetings!
I'm not a knife expert by any means, but I do have that BM model with a combo edge and a combo edge Manix 2 and could throw out a few observations for you.
For the tasks I put them through, both are more than up to them (cutting food, packages, occasional box; in reality, nothing a SAK couldn't probably handle!). The BM is bulkier, though, due to the handle thickness (those scales could have been a little thinner in my opinion), in the pocket, and I find the clip with its rounded top tends to slip away from the top of the pocket edge when bending etc. At first I thought the blade length (around 3 inch) was just a bit short for the handle length/width/thickness, but it's grown on me (and I can see if they made the blade any longer, the concomitant increase in handle size would have made this strictly a belt sheath carry, atleast for me).
I'm not a flipper fanatic, so don't mind the fact that a little wrist is also needed to pop out the blade. It certainly opens and closes smoothly and its heft does impart a nice feeling of hard usability, if not exactly pocket portability.
The Syderco Manix 2 has a much different feel. I was a little worried, given its length, that it would be too much for pocket carry, and I wasn't really sold on the 'hole in the leaf' blade shape. Fortunately, I've been happily surprised. The slimness of the Manix 2 more than made up for its length as concerns pocket carry; in fact it carries better than knives 2/3rd its size for me. The blade shape has proven imminently usable and the 'hole' functions well for opening. I've read that its lock can fail with spine wacking, but as I consider that a silly thing to do with a folding knife (no one would even think of doing it with a slip joint!), I can't hold that against the Manix 2, and suspect it would handle a fair amount of hard use. The clip holds it securely in the pocket.
Both lock up firmly without blade play, and their G 10 handles supply a good amount of gripping surface (albeit in different ways) for my hand, sweaty or dry. Both have metal liners.
Haven't put either to a test where blade geometry would be a factor (BM flat ground, Manix 2 hollow ground), so can't comment on that.
Hope this was helpful!