a really neat trick posted by yellowhammer on edcforums.com
for knives with a thumbhole, you can make your own "Wave" feature (ala Emerson) by attaching a zip tie to the hole, then trimming it down as much as possible. the raised part should be faced outward, ie in your right pocket for a right hand draw, clip it so the square part would be on the outside right of your pocket (unlike the picture below, which is opposite and he said he flipped it around)
another member verified that it works like a charm.
for knives with a thumbhole, you can make your own "Wave" feature (ala Emerson) by attaching a zip tie to the hole, then trimming it down as much as possible. the raised part should be faced outward, ie in your right pocket for a right hand draw, clip it so the square part would be on the outside right of your pocket (unlike the picture below, which is opposite and he said he flipped it around)
another member verified that it works like a charm.