Ok, I am thinking about getting a SB to use in concert with my ProVari. I know this is probably a stupid question - but I am going to ask anyway. The 18650s that I have are only 1600 mAh. They should work fine right? (I know, I will just get less battery life than the newer 2600 mAh batteries right?) Second, how often are the colors brought back into stock? I think I want the bright gecko green color. However, I could live with the blue if I had to (it is in stock right now.) Thanks for the help