Is the premise here that Holes or Studs weaken blades to varying degrees? I for one don't understand how for practical purposes either design would be weakened to point that failure would be caused unless you are trying to break your blade. All this hard use Hoopla is lost on people who actual use their tools.
Several good points.
The premise was really only that I like the Hole. I read about the defects, where an oversize stud/post was squeezed into an undersize hole thus causing a stress fracture. That only made me even happier about the Hole, where this is avoided (of course as some has pointed out, even Spyderco knives fail).
I agree with you on the 'for practical purposes' argument. It must be said in advance though, that the pressing of an oversize stud/post into a too msall hole has of course nothing to do with user/customer error but is solely a (human) QC failure.
That being said, I personally dont get the hard use mania in regards to folders either - to each his own of course - everybody can use their knives the way they want, as its their money (I have to get the caveats out of the way

).
I dont get the "I batoned with my folder and it broke! Bad folder, give me a new one on warrenty!"litany.
I use most of my folders for cutting and slicing. Seldom do I have other needs for them. Dont like to open paint cans with them either. Have a small CountyComm pry bar for that.
Ok let's be constructive. In defense of thumbstuds in the zt model. They also serve a function of negating any side to side force on the blades pivot. A hole is in a hole on this one. Not that I'm not a big fan of it myself.
Thanks.
I like ZTs just fine - they make a quality products and Im sure the studs/posts work just fine in the vast majority of cases.
One reason I buy Spyderco is the hole in the blade. I am not at all against studs. I have had many occasions when cutting something that the studs would dig into what I was cutting either messing things up or binding things up. The hole does not have these issues. Also, the hole is a lot, and I mean a lot, easier to find while not looking at the knife. I will go so far as to say I prefer the Spyderco hole to any assisted or automatic knife, as well, and I have owned a few.
I concur; the Hole is also a major reason why I buy Spyderco knives (the overall quality, large variation of offered knives and the people standing behind their product are also some factors).
Im not against thumb studs either. Its just that when using a knife a lot, I notice the stud more than a Hole IMO. The Hole is more comfortable for me personally YMMW.
As a thumb stud on a blade can wear out the skin of a finger, some have lightly sanded the Hole for ease of use and to avoid chafing. I personally dont see that as a major problem, though I tend to use my knives a lot.
I likewise agree in the assisted or automatic argument. With the speed and ease of opening using the Hole, I dont see myself as having the need for an assisted or auto knife - even if I could legally carry an auto, which I cant.
I dont care much for assisted knives (and know some people 'de-assist' them) but thats a different kettle of fish.