Sun Nov 08, 2015 8:49 pm by MBI
On a regular double sided wafer lock, one technique for using these picks is to hold the pick loosely between finger and thumb.
Apply very gentle turning tension (instead of using a tension wrench) while rocking the pick like a jiggler.
Depending on how deep the keyway is you can also slide the pick in and out a little as you jiggle to make sure you hit all the wafers.
If it doesn't open after a little while, take it out and flip it over and try it the other way up.
Keep doing that until you've tried all 8 options (4 picks X 2 ways up), or until it opens.
I have mixed feelings about these picks. I keep a shorty set of them on my EDC-entry-keyring since they work quickly a lot of the time. However, since you're using the pick as both a jiggler and tension wrench, and the tines of the pick are so small, they're very easy to bend if you're not careful. Sometimes they can open a wafer lock pretty quickly, but it also means having to carry yet one more tool for locks that can also be opened with single-pin-picking if you don't want to buy or carry extra tools.
If you try them and like them, Southern Specialties makes a keyring version of these picks which are shorter and have a hole for the ring to make carrying them easier. They also come with a little tension wrench you can use with them to reduce the chances of bending them, but it seems only a few keyways can accomodate both the pick and wrench and still let you use a proper, gentle jiggling motion.
As for the DUO lock, I haven't tried picking one but someone I know who has picked them told me he just SPPs them with a half diamond.