Does anyone have any info about the gel coat used by Schempp-Hirth over
the years. In particular, I'm curious if SH has changed their gel coat
over the years and if so, when did they change? I'm hoping that more
recent built gliders (late '90s) were made with a newer type of gel coat
than gliders made say in the late '70s or early '80s.

Many thanks in advance,

Gary