I just read the german surf magazin on freride / race race sails from nr 6 2010
It claims that for example the neil pryde H2/gaastra swift(two cambers- I guess about the same sail as turbo) has better bottom end, better drive through lulls and better/equal middle wind speed than for ex gaastra gtx race and north ram. But clearly not as good top end speed and control in the gusts as the race/slalom sails.
If these results can be translated to overdrive and turbo, it seems like turbo might be a better choice in light wind?
Or is this not your experience regarding element/turbo contra overdrive?
I know you get the same questions over and over again but could you please reply to this one :-)