Mothra wrote:

As you probably know Jim Snyder has spent his entire career trying to
get rid of paddle flutter. He even went through some iterations where
he drilled holes in the paddles! The best he was able to accomplish
was coming up with a uniquely shaped small blade (Esoterick) that
swishes through the water much more smoothly than anything else I've
experienced. See www.jimisnyder.com for the best paddle you'll ever
dip in the water! But even Jim will tell you, he's reduced flutter
to a minimum but not eliminated it.

I did not know that the Esoterick was primarily designed for low flutter!
It's a really odd looking paddle.

BTW, paddling yesterday with a 60 degree feather, I noticed that my wrists
rotated not at all, neither control hand, nor left hand.

Borrowing a 45 degree paddle from a friend, I noticed that my right wrist
was bending down during each stroke. This motion is less comfortable
for me (more likely to cause tendonitis?) than bending up.

YMMV, or perhaps we should device a new acronymn,
YWRMY (your wrist rotation may vary).