I've owned 3 Spydercos for many years, and found them all tedious to open. I've seen the videos of all the funny ways to open one, but two of mine have so much drag that they won't flick, so the stainless handled Endura was my default favorite because I drew it by the hole and shook the handle open.
On the other two, you just open the knife the old fashioned way - put your thumb on the hole and push it in a long arc. Thumbstuds, even when they have a fair amount of opening drag, just seem easier because your thumb ends up traveling . Tonight I measured a few knives, and it was dramatically obvious that your thumb must travel a larger arc and further distance from the blade pivot on most Spydercos than most thumbstuds. About 1/2" in arc diameter.
Spyderco is a fine company that makes excellent products, so this is not an anti-Spyderco thread. And several other companies use some variation on the thumbhole, which almost always requires a larger thumb arc to open. Yet, this never seems to be a topic of conversation.
Does anybody else find thumbholes long, slow and requiring more dexterity? Or do liner lock versions flick so well that most Spydie users never have to trace the full arc?