Nothing in particular, but I'm using them for a JAMMA harness I'm making for my vlx. It's 100% removable minus the coin, test, and service buttons. I'm adding this so the harness can be removed at will.
I broke down and submitted a sample request from JST. I hate ordering samples, but the entire YL line in the US is so damn difficult to get ahold of. I actually bought a ton of YLP/YLR-12v/15v connectors and sockets directly from JST about a year ago and they've just been sitting in my stock until I decided to do something with them. All Taito cabinets use these for CP looms, as well as the Neo/super neo candy cabinets, and some AWSD, so if anyone needs Taito/AWSD/Neo candy CP looms, I can make them.