For some reason I thought you were saying the Sebenza 31 is more like the Inkosi, am I dreaming?
No not dreaming.
The Sebenza 31 incorporated the slanted pocket clip, lock interface of the Inkosi and Umnanzaan... but it didn't incorporate the pivot design, they stayed the course and kept the pivot bushing... which is a good thing and bad to some.
The good about it... when they match the washers/blade to each knife... all you have to do is tighten the pivot and she is centered no loctite needed.
The bad about it... have to slide it in as mentioned (Not really hard) with a greater chance at pinching the washers... which if you do that, you have to send the knife in to get them refitted.
With the Inkosi and Zaan, you adjust the pivot to where you like, add a tiny dab of loctite and be done...just sammich the blade washers etc in place, hit the 2 screws and done.
The more screws to align handles the greater chance there is of not having them at the same torque which can change the centering of the blade.
In either case, you can't go wrong with a Sebenza 31 or an Inkosi... I just prefer the Inkosi.