txwest,
I do understand your point, having EDC'd many 2x123A lighs, including the 6P, E2 and the Asp Taclite (my personal favorite because of it's unique internal "set it and forget it" focusing mechanism and its ability to throw a spot beam further than any of the 2 cell Surefires, regardless of lamp.
I belt carry my lights except for big ones like the US or M6; and I've found that the appropriate holster, properly placed makes all the difference. Whether it's an E2 at 3oz., a 6P at 5.1 oz or a Taclite at 5.4 oz,
(all with batteries), I'm almost never aware of their wreight.
That said, It's still true that the E2 is a little gem and is a good general illumination tool, but I stopped carrying mine in favor of the Taclite/Inova X5 combination
Regards
Brightnorm