I know what you mean about the tailcap safety switch. I was very happy to get the optional "always on" cap with mine too, but don't use it either. The only way you can keep the button from being pressed down while the case is shut, is to face the button into the cutout, which then does make it challenging to remove the laser without firing it off.Great thread congrats on 2k Pete. As a lucky owner of a RGB set of yours I can tell you they got me loving pens. I bought from the BST section a 80mW 520 pen made by BTB and the feel of this high quality pen is awesome. It's one of my favorites and also my first 520. Pens are really fun but just as a word of caution to the new members of the laser community momentary side buttons can be easily activated un intentionally.
My 520 has two tail caps one has a tiny safety key the other is constant armed. I removed the key tail cap and attached the constant armed one because I felt it's was unnecessary and when I was putting the pen back in its case the lid hit the button and the beam activated. My wife was sleeping and the dot hit the wall very close to her head. It really gave me quite a wake up call.
I no longer store any lasers with batteries and if safety switches are an option I utilize them.