Thanks a lot. i've linked your quick review thread in my DX thread. Interesting to note that my driver runs twice as efficient: 2.0hours in High-mode for the Alkaline (That's because yours is brighter in High-mode, newer LED emitter!). I will re-run the runtime tests with the Alkaline. Will cost me another 2 Mignon cells haha.
Maybe someone with eneloops can re-run the tests with both RC-29's.