Looking for the 530. Unless I don't like it when I get my hands on one. Then might look at a griptilian or mini griptilian.
Cabelas should have the 530, that's where I bought mine. Great EDC option, super thin and comfortable in the pocket. I'll warn you tho, if you are used to bulky or heavy knives, it will feel flimsy. I don't think it's designed for hard use, but it's fine for daily duty.