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Old 30th January 2008, 12:33 PM   #23
Join Date: Aug 2006
Posts: 1,191

The SDM/RDM thing was just to indicate that it _could_ be possible to build masts with different materials but similar weigh properties, not meant to be a real basis for comparison.

In practice it is of course impossible o build on glass mast and one carbon mast and have both weight, stiffness and geometry identical (since carbon is stiffer in the same weight).

The argument from the start is that it is the is is the weight difference that is responsible for the reflex difference, not the the material choice per se. In theory this is a clear distinction, but in practice the two effects get kind of hard to isolate (and keeping everything except geometry the same is probably the closest you gonna get towards isolating material choice).
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