For reference I still carry my 123 tac daily. It has been beaten and abused, I once even used the bulb end to beat weld spatter off a machine at work(for a minute or so before the "what the #$% am I doing" kicked in).
It does have a permanant clip(the 2 cell flashlights are reversable) that puts the flashlight in bulb up orientation in the pocket. I actually prefer that method as it makes it so that when I grab at the flashlight my thumb naturally goes in the pocket and rests on the clicky. For 1 cell flashlights I prefer bulb up now though I never figured I would. Also I have zero worries about the durability of the bulb end since like I said above I have beaten the piss out of it. It does have scratches and nicks but has always worked. Also since I only keep the flashlight in my front right pocket(an nothing els in that pocket) I now keep the lanyard attached to the light and stuffed in the pocket. This makes it much harded for me to loose the light(I lost it for about a week once and had to use my turbo for daily carry, I missed the 123 tack alot).
Just FYI, I bought my wife a preon a couple of months ago. I was very impressed with the brightness and will likely buy myself one as either a backup or replacement to the 123 tac for work carry. The preon was just exceptionally bright and the AAA'a would be easier to get work to pay for since I go through about 3-5 cr123's a month(and the guy who provides the batteries has only managed to swing 123's a couple of times for me). I have no idea on the preon's durability though because while I beat the crap out of my lights my wifes is usually sitting in the diaper bat next to the softest, fluffyest diapers she can find.
You can never make anyting idiot-proof, whenever you get close they just build a better idiot.
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