I wouldn't quite say the Southard flipper is at par with the Sebenza... but i wouldn't say too far it's far from it either. When the Southard blade is closed, you can try to move it from side to side between the scales and it just wont! Hit the flipper and the detent holds it just enough that once it's been overcome...Thwaaak! Once open, no side to side movement. Usually most production blades that open easily have a little side to side play...that's just the trade off for an easy opening blade.
It's quite possibly the best $250 production blade out there IMHO. It's not just the f&f but the ergos and the blade thickness make it feel super sturdy & you get a high end blade steel. Absolutely one of my favorites to EDC, fits nicely into the rotation with any of my 3.5" mid techs.
Both Southards I've owned moved side to side when closed, minimal but definitely noticeable. When open, no blade play at all of course, very solid.
F&F is good, but not as good as some people make it out to be.
Here are some noticed issues:
1. Milling can be seen in the thumb cut out.
2. Milling can be seen in the titanium liner sides.
3. Finishing inside is good but not great. Could have seriously used chamfering.
4. Better fitting of the lanyard tube.
5. Fit on the knife is very good but not great, yes it's tight but it isn't because tolerances are tight, it's due to the pressure in the lockbar holding the knife in place not tolerances.
6. Fitting of the pivot is poor imho, plenty of play of the two I owned. Made playing with the pivot to center the blade a bit toy like.
7. Pocket clip is sharp and will poke through denim jeans.
If you take a Southard, properly disassemble and reassembly or tighten or loosen the pivot it properly you can affect the blade play, and centering easily enough.
Take a Sebenza. Disassemble, and reassemble properly. You will end up 100% in the same place you had it. Same friction, same centering, same lock up.
That is real tight fit. Plus the finishing is well done. Not the best finishing, but darn good.
Anyways let's not get hyped up into buying a product, take a look at it for what it's worth.
Imho the Southard @$260 is too pricey for me. But at after market prices, think it's a solid value buy that will be hard to beat.