Multiplexing *may* slow you down at read time.  Probably will, but
the common assumption that it is automatically slower is not correct.

Urbanec, Peter writes:
> > If this is the case, I may have the answer to my slow
> > duplications
> 
> Yes and no. It will slow you down, but only by the level of
> multiplexing. Some of us are seeing much worse performance
> problems and are preserving the multiplexing.
> 

-- 
Larry Kingery 
      Don't use a big word where a diminutive one will suffice.