Rise to the Top -- For some reason I am unable to quote your message, but it does seem odd to offer two skis at nearly equivalent dimensions. I know there are ski brands, K2 for example, where they take one ski at an intermediate level, beef it up, and then offer it at the expert level (I may be thinking of the Apache and Recon, but don't quote me on this, because my memory is hazier than usual). Another example: Nordica Nitrous at intermediate level and Top Fuel at expert level. But that's not what's going on here -- Volkl is not marketing Tigersharks as on the same vector but a higher level than the Unlimiteds.
I wonder if there is some other structural difference that makes these fill different niches? For the current ('08-'09) model year, Volkl's website says that the 76-waist AC-30 is a 50/50 ski, but the 79-waist Tigershark is primarily for groomed slopes and someone who only occasionally skis off piste (see Geoff Curtis video for the Tigershark 12 w/out power switch). This seems counter-intuitive to my (non-expert) mind. Is there some difference other than width that makes the Tigershark class more groomer-oriented than the Unlimited class?
Philpug, any insights? Others?