On Saturday, February 28, 2015 at 6:10:30 PM UTC-5, MNLou wrote:
Hey Dan -

Why not just use water for tail ballast and not have so much weight up high? Possibly a freezing problem at altitude?

Water can be good to offset the balance when dumping wing ballast..... If he is looking at "static balance" (my choice of words).... he is looking at fixed ballast for the "normal pilot" (normal is a relative term here.... if you're a pilot, lots of peeps think we're abnormal.... sigh).
Tail water ballast can be useful when dumping wing water ballast creates a CG issue.

Just my $0.02US........