Sorry Joe, you'll have to settle for 99.99%. I have never thrown a knife across the room by accident. I've done it on purpose a few times, but not while opening. As far as tip up avoiding a pinch grip, I must have no idea how to draw a knife from my pocket, because I always end up pinching whatever portion of the knife I can get a hold of, drawing it out and inchworming my way to the point where I can reach the hole. I've fumbled that manuever way more times than tip down openings.Joe Talmadge wrote:The advantage of tip-up is, you can pull and open the knife without ever pinch-gripping. Tip-down, every opening always involves a pinch grip. For any use which involves stress opening, tip-up is the way to go, as anyone who has ever thrown their knife across the room on a fast pinch-grip opening (admit it, that includes 100% of us) can attest.
The possibility of tip-up carry resulting in opening in the pocket is a very realistic concern. While I strongly favor tip-up, I only like carrying that way for knives that have a lock that provide a strong positive closing bias -- lockback being the best, something like a ball lock being not too far behind, and an integral/liner/compression lock only being acceptable if the ball-detent mechanism is really well executed.
I've been over this a few times. The side of the pocket only holds the blade shut if the knife is carried in the back corner of the front pocket, and if the clip keeps it there. I've had a Dodo, a Salsa and a D'Allara Drop Point open in my pocket when the clips failed to hold them in place against the side of the pocket. I carry my Millie in the front corner of my back pocket, and have for years. Guess what? It's tip down and the blade is against the pocket seam. Know what happens when you carry a BM 710 that way and jump down off a loading dock? I do. It's one of the reasons I carry Band Aids all the time. These things are not myths. These are personal experiences, and experience is the best teacher.THG wrote:Tip-up is SLOWER. It is. Spyderdrop or no Spyderdrop. It's also more difficult to get the knife out of the pocket.
Also, tip-DOWN is LESS SAFE. How can a knife carried tip-up open up if it's against the seam of the pocket? It can't. On the other hand, a knife carried tip-DOWN has the blade's path pointing toward the INSIDE of the pocket, so there's a chance that it can open up when your hand is on it's way up out of the pocket (don't ask how; we never understand how these freak accidents happen lol)
I think that most people believe in myths where exactly the opposite is true when it comes to tip-up/down carry.
As for how a tip-down knife can get your hand on the way out of your pocket, if the detent is weak enough, friction from your skin dragging up the spine can open the blade, possibly enough to cut you. I had a BM 640 Mini-Spike assassinate my wallet that way, which taught me the folly of carrying a right-handed knife in my left back pocket.