I just ordered a Quark 123-2 X and a Quark AA-2 X. Before going out on a girls night out, my wife and her friend decided that they should take my Quark 123-2 XP-G R5 for "just in case" reasons. This is the woman that rolls her eyes and tells everyone that my flashlight "obsession" is evidence of mental illness. Anyway, my wife's friend lost my Quark! Lost it! Obviously I had to replace it. So after reading Selfbuilt's review of the new XM-L models, and being undecided about which one to get, I did that which is in the CPF credo--I ordered both!