I read this thread with interest before I bought one. I usually have a huge FO dive knife on me when afloat, but it's a bit gung-ho for dropping up to the pub and a PITA to remove the holder. Also, it hurts when I sit on it
I was tempted by the Gerber E-Z, but found the Spyderco Atlantic Salt when I was shopping. It is reputed to NEVER rust which swayed me to purchase it. Arrived today, the blade is around 4", opens and locks one handed. VERY sharp. The "sheep's foot" blade design should be fairly safe around people and toobs. There is a lanyard hole as it doesn't float and the belt clip is Titanium - all in all it's very light and slips unnoticed into any pocket.