88, I have four knives in three models. The first I bought was an AFO that I got shortly after their release. I believe these were their first auto. I had them make me up a dozen without serrations and without pocket clips. Eleven friends got a great deal and I did even better. The next two were a Pardue design that has aluminum handle scales with rubber (?) inserts and a 4" blade, these are my favorites. I don't know that this knife was ever released to the public, I have never seen another and I couldn't find it in their discontinued products. The fourth is a 3550 which is also a Pardue design, has about a 3" blade, is very light, has the integrated safety and is about ideal if wearing jacket and slacks or a suit.
Note that i had the original AFOs made without pocket clips. I carried the two larger knives, while wearing dress clothes, in a pocket and did not want a visible clip. I also carried them on the farm wearing work clothes. I don't know how many times they opened in a pocket but it was enough times that I was conscious of it.
I'm not knocking these knives. If I didn't think they were well made and well designed I wouldn't have bought them in the first place. Remember, my recommendation of the ZT was with the caveat "if you are going to use it a lot". The ZT 350 is sturdier, more sure to deploy and has S30V instead of 154CM like the Benchmades. Kershaw has greatly expanded their ZT line since I bought mine. The OP should look at the newer 770. 3", Elcan steel, assisted opener and only weighs about 3.5 ounces.