>>"not a big fan of the H2O Amigo, but putting a Katadyn Hiker filter cartridge in the Amigo is a great idea"
i'm wondering, when you get a spare moment, if you could elaborate a bit on this statement of yours, please. i'm interested in understanding why. not saying your statement is wrong. i just want to understand the reasons, i.e. what thoughts were running through your mind. i am already familiar with the difference in specs and construction between the two filter elements.
as always, i'm a big fan. may i have your autograph? how much have you used the Hiker Pro/CubenAmigo combo? do you find the lack of a prefilter and non-backflush/clean capability of the HikerPro filter a drawback? especially want to know: does the naked HikerPro filter clog readily without the prefilter? when you get a spare moment, please reply & let us know. Katadyn makes their "Camp" filter, as they call it, in a manner somewhat similar to your CubenAmigo - their bag is much larger than the Amigo, however (~2.5gal, if i recall correctly). i beileve Katadyn encases the HikerPro filter cartridge in some type of housing. don't know if this housing also functions as a prefilter in the Katadyn. also, this housing may more easily allow cleaning. here's a link something that purports to be a: Katadyn Siphon Replacement Cartridge for Katadyn Camp Filter (it costs as much as the whole Katadyn Camp Filter - at least on the Campmor website)
if pre-filtering is deemed necessary due to the state of the water in someone's area, couldn't the naked HikerPro filter cartridge be wrapped in, let's say..., cheese cloth, for instance. it's light and would both prefilter and allow removal for cleaning. any merit to this suggestion? or, is it just another ill conceived concept from the friendly folks at "Bad Ideas are Us" (pj - proprietor)?