First and foremost, welcome to the forum!
Second, you don't fit the "panty ass from Kalifornia" bill, seeing as how you're looking to open carry, haha!
There's no law saying what kind of holster you can or can't use, so your drop leg holster is perfectly fine! In fact, Batousaii uses a rustic looking rig for his single action Ruger that would be the modern day equivalent of a drop leg holster. Police may hassle you but they can't actually do anything. I've OC'd plenty in Lakewood and haven't had any problem, I use a Blackhawk Serpa level II retention holster.
Here you can open carry loaded to your heart's content. You only need a concealed pistol license for concealed carry and to have your pistol loaded in a vehicle. Without a CPL, you have to unload every time you get in a vehicle, which means no magazine containing ammunition in the gun, and no round in the chamber. Some people carry without one in the chamber when they don't have a CPL for the convenience of only having to remove the mag, rather than racking the slide to unchamber a round.
Dang, we have several people in Lakewood now. Let's get a meetup going!