Which is the most comfortable and fast to use to open a folder? When I've tried them it seems to depend of where they are placed on the blade, and how smooth it opens. Is it different with a custom knife? Before I shell out $300+ for a knife I can't see till it arrives, I'd like your opinion. I'm interested in a 3 inch blade, in a somewhat "tactical" style. I like Tom Mayo, Chris Reeve, R.J. Martin, Bob Terzuola styles. They seem to offer various ways to open their knives, so...which method is "best"? Yes, I know you can't get any of those knife makers knives for $300, but I'm open to $300+. Thanks.