Interesting topic........
I bought my first Sebenza four years ago. I brought it home and looked at it for many days, wondering how I could justify the investment. Well, I eventually returned it and got a refund from my kind dealer. Well, as of last year, I probably had a half dozen variations of Sebenzas in my line up! Chris, in my estimation, put the lock and blade orientation in the correct spot. With the tip up positioning and the clip running parallel to the lock bar, your grip plays a very integral part in the saftey of the Sebenza: The hardeer you grip the knife, the tighter the lock. I also like the serrations on the back of the thumb ramp. It really places the hand in a secure push stoke. The Sebenza is a GREAT utility knife!
But, after using them for some time now, I must say that I don't find BG-42 that attractive. I am a professional wood worker and carpenter.
I cut a lot of junk most of you guys don't encounter and its very abrading to edges. So after constantly having to touch up my edges on my Sebenzas, I jumped into the custom arena. And my motivation was to find a superior steel ( I am planning on buying a new Sebenza in S30V in February) My favorite steel for edge retention is D2 and 52100. My first D2 custom was a Dozier Tab lock. Great cutting blade, but I wasn't overly impressed with the tab lock system.
So this fall I ordered many customs--DDR D2 EDC, a Dunn Practical Tactical, Duncan Whiplash and some Obenaufs in D2. I actually have a large Obenauf # 2 in my back pocket. Firebat and cpirtle are Obenauf fans, too. Mike's fit and finish is second to none. I'm sure Kit's influence has rubbed off. The only thing that Mike needs to improve on is repetitive blade grinds. After he does 50 to 100 more knives, his grinds ought to be right up there in quality. Not to say that my #2 isn't usable--it is VERY usable. But visually, his blades are satin finished, and grinding imperfections show up moreso than blades that are heavily bead blasted.
The Obenauf is a keeper for me. As far as the other customs that I bought this fall and winter, The DDR EDc is a fantastic knife, fit and finish is excellent, but it doesn't fit my hand

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And the Dunn is ALSO fantastic knife. A true example from a MS. But I'm not enamored with the placement of the pocket clip

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So here I sit with about $1000 worth of Customs that will either collect dust, or hopefully I can trade someday. Anyone out there with an "extra" JW Smith PT?
A comment about QC. When a maker breaks on to the scene, regardless of his craft, it usually takes a dedicated effort over the years to excell at that craft. Very few people that I know have earned an excellent reputation in the first couple of years of operation. Like I said, it often takes many years to earn the right to be reffered as a Master Craftsman. Norm Abram, from "This Old House" is a Master Carpenter. That's a 20 year achievement, folks. I could give you more examples, but I think you get my point.
Enoiugh band width from me.
Good luck on your decision. Lots of great Knives out there! Fun stuff!
Barry H