I am waiting on an overdue quote for a Ti 2xAA McClickie pak. I know it will be expensive and a PITA for the machine shop because of the deep bores involved. I am interested in this as an option because there are times one would appreciate a longer light in their hand, the availability of AA batteries and the extended run time of 2xAA VS a single CR123 or R123. Key in my interest and decision to pursue this is the fact that the SunDrop and Haiku heads with their LE's could run on a 2xAA pak with no problem. For myself, any 2xAA paks I have will be loaded with lithium AA's because I do appreciate the long shelf life and desire to avoid a leaking Alkaline battery if left unattended for too long. Additionally, there are UL approved and easily obtained rechargeable AA cells that can also be used. The platform has merits that can't be denied although it might not be appropriate or everyone's cup of tea. :shrug:


