I too have tried to get Jerry to respond to bugfixes and/or feature
requests, with absolutely no success. IIRC, the last thing Jerry did
was fix the bug that allowed the user to 'Turn Here' outside a turn
area without a warning dialog (don't ask me how I know).

I tried for quite a while to get Jerry to add arrival height for an
AAT mobile turnpoint - very useful for turn planning on upwind/
downwind legs. All the required information is available, and he does
it already for non-mobile turnpoints. He never even responded to
emails, and of course his 'developer forum' hasn't worked for years.

I have been using WP9 for years, but I have finally given up. I now
use SoarPilot on a Palm Tungsten T/Magellan GPS Companion combination
almost exclusively. The SP developers actually listen to their users
and respond!

TA