Bigocean said:
About the size, I'd reckon its just won't be the pentagon anymore if it is around 7inch like you've previously suggested in another thread.
It would still be the Pentagon with all the Pentagon's unique qualities, just a
bigger Pentagon, still streamlined, with a lot more penetration depth and cutting ability. It's not that much of a leap. The Pentagon is already a 5 inch blade. Upping it another 2.5" would bring it into a full-size but very streamlined shape shared, at the moment, only by CRKT's Hissatsu.
As a design, however, a full-size Pentagon would have
much better cutting abilities. Some knife people, outside of Spyderco fans, just don't fully appreciate the performance of a fully serrated blade. The Pentagon has more serrated blade length than most Spyderco knives
and a conventional straight edge for fine cutting.
Concealment is a huge subject in itself. There's a number of things that make a knife really concealable, IMO. First, the knife's "footprint". The wider the guard, the wider the blade, the chunkier the handle, and the heavier, the overall knife, the harder it is to conceal.
Conversely, a knife with a minimal (or no) cross guard, a narrow blade, a streamlined handle, and a light weight is incredibly easy to conceal. The Hissatsu is a very good example of this. I know a couple of people who like the design and carry it concealed. Under regular city clothes, there's little, if any, "printing".
Why?
Because the knife is very streamlined.
Like the Pentagon.
Because the knife has an incredibly well-designed handle.
Like the Pentagon.
Because the knife has a narrow(er) blade.
Like the Pentagon.
Because the knife doesn't weigh that much.
Like the Pentagon.
So, with a good sheath set-up (even if it would probably have to be a Kydex one) comfortably carrying a concealed 7.5" blade with a streamlined profile is definitely possible. W.E. Fairbairn used to carry 7.5" dagger concealed and that was in the days "before kydex". He used to suddenly whip it out and scare the heck out of his studentsto boost their "situational awareness" too, IIRC.
Maneuverability... I like the way you think! :thumbup: Well, in terms of length, 7.5" is probably reaching the near maximum in "CQB" (if you will) blade length. That's not just my opinion, but that of William James, the Hissatsu's designer. The man knows much more about the subject than I do and his credentials are impeccable. That length seems to be a near-max standard with knives designed by people with real experience. The Sykes Fairbairn had a 7" blade as did the V-42 stiletto.
Weight on a larger Pentagon wouldn't be a problem either, again thanks to the incredible design genius of SOG. The blade is .15 inches thick and a lot of blade material is removed to get the double edges. As such, the Pentagon weighs only 6 ounces. It's a very light, incredibly fast knife. I don't believe adding just 2.5 inches more and a bit to the handle would suddenly double its weight.

Even if the blade needed to be thickened a bit to increase its lateral strength, it would
still be an incredibly fast knife for its size.
A full-sized Pentagon would be a knife in a class by itself. Since the Hissatsu is a big success for CRKT, I'm betting a similar sized Pentagon would be an equal success for SOG.
...especially if SOG offers it in all-black and all desert tan versions. The same scary military contractor personnel who like the Hissatsu for what it is would probably go
nuts over a full sized SOG Pentagon.
...and a SEAL 2000 with a black TiN mirror finish
Black mirror finish? Wouldn't that reflect light Very well?
Yep. Just like the Super Bowie. Just imagine how
gorgeous that would look! That magnificent SOG blade, glimmering like a piece of black ice, combined with a flat black Zytel handle. Black on black in one piece, one reflective, one not. Tactical? Probably not. Who cares?
Okay, now for the most important thing.
There's a knife at my local gun shop with the pentagon handle, a serrated tanto blade coated in the same stuff as the SEAL 2000, is this the Tsunami? It comes without the box only the leather sheath, but the knife itself looks new! Should I get this?
If it looks like this, yes,
it's a Tsunami.
Should you get it? Depends on what you plan to use it for, how much you like the knife, and how much the shop is charging. One thing's for certain, if it's got a leather sheath, it's "old school" SOG and those are
very hard to come by.
My advice is to think it over for a good half a day and make a hard decision one way or the other ASAP. Because if you decide, "Yes!" then you should rush down there and buy it
immediately. Not at the end of the week, not next pay day, but that afternoon.
...because there
are guys out there who love the SOG Tsunami as much as I do the Pentagon. If one of them is on the road and happens to stop by that shop before you decide, that SOG Tsunami won't be there for you.
One thing though, if you DO decide to get it for your collection,
really look the knife over before laying down your money. Make extra-certain the finish hasn't been scratched or the edge and point haven't been "touched up" a bit. Some gun shops take knives in as trades, etc. This knife
did have a previous owner, so make sure his standards of maintenance are up to
yours!
Apologies for the extra long post. How to get Vaako wound up: Just add Pentagon and shake well.
