I have to check my CH leaves again.
My 20th C .just started to drop the first few. You have already picked a bucketful.
I thinned seriously this year. Still, the fruit are small. A few that dropped were so small that I did not even bother to pick them up.
In 2013, I did not thin enough. It went biennial last year. After several years of small fruit with an OK taste, I am looking for tastier and bigger A. Pears to graft onto this one.