On Sunday, December 8, 2019 at 1:47:26 PM UTC-5, Eric Greenwell wrote:
Are we really having this conversation after all these years,
with 80% of the gliders going out the factory door with an engine?

That is PRECISELY why we're having this conversation.
Looking forward to your contributions,
Best Regards, Dave

PS: Old, but still relevant (I need to see if Jean Marie has an updated version):
http://www.streckenflug.at/download/motorprobleme.pdf