On Jan 31, 5:06 pm, "Dan G" wrote:
A friend of mine weighs just 110lbs with parachute. With ballast, she
can fly some K13s and a couple of wooden single-seaters which have
particularly low cockpit min weights.

Which GRP single-seaters tend to have low min weights, and how much is
it?

I guess that person is also small, so are there any examples of
adding
extra weight in the form of a "very heavy cushion" between the pilot
and the seat? Perhaps a very heavy cushion could be fashioned from
lead or rubber sheeting, and placed between the energy absorbing
cushion and the seat pan.