I have seen these discussions on various topics but can't seem to find one that says it all, apologies for starting one if there are already others. Anyway..
Having just received my Rangeman makes me wonder, the different models, namely Riseman, Gulfman, Mudman, Frogman, even the Aviation series and now Rangeman, what are the differences in "toughness", ie Mudman claims to be "mud-resistant", does that mean other are not resistant to mud? Frogman is clearly differentiated with "Diver's 200m" rating. Riseman doesn't seem to be more "altitude resistant" than any other (are the Aviation series more resistant to altitude other than G-force?), Gulfman is not more "water resistant" than others, and the latest Rangeman is.. Geez I don't know where it stands?
I just wonder if all these are more marketing than functionality.