http://www.syndergaard.dk/wp/?p=144#comment-407

This has important implications for competitions, since it means
the Serial Class initiative rewards gaggle flying even more than what was
already the case. I don’t think that is a good development, as it will lead to
larger, more congested gaggles, to even more tasks being decided in the final
glide, and in the second order it will put more emphasis on top speed in the EN
D designs we’re going to see in the future. In the mean time it also gives an
advantage to heavy pilots, and pilot who don’t mind tweaking their speed systems
(at the expense of fairness). Further, gliders designed with top speed as their
overruling parameter do not belong in the EN D class – that class should be much
more about good, predictable behavior at all times, coupled with plenty of
usable performance.