Personally I just tighten my knife's pivot until I can't get it to flick open no matter how much I try unless it gets to the point where it becomes hard to hold onto the knife.. Works so far for all the Ti/SS Framelocks and linerlocks I've had, from a large Sebbie (obviously) to the Chokwe, Gayle Bradley, and Military.
For me, safety is worth not being able to thumb-flick a knife open. pretty much started doing that after reading some posts by and buying a few knives from STR.
Cut myself fairly badly at least three or four times - once I had to pretty much glue part of my thumbpad back on to stop the bleeding.