It took maybe 4 years to get *fully* used to them,
Noel, I admire your persistence! Many years ago, I tried progressive
lenses. I did not have the problems you mention, but I found them to
be unsuitable because the only place where everything is truly in
(progressive) focus is down the center of each lens. For my
dissertation, I was skimming large books and discovered that,
instead of being able to move my eyes back and forth, and I had to
keep moving my head back and forth. Things were distorted when I
looked out the sides of my lenses.
So, I have tri-focals, which work just fine for me, so long as I
have reasonably large glasses frames – those little narrow frames
that are/were in fashion are impossible with tri-focals.
I was/am quite near-sighted. I wondered if part of your problems
with the progressive lenses was that you originally were far-sighted.
Just a thought.