Yes, their response graph is optimistic.
Prior to any treatment, the one's polar response looked like this:
I didn't do the other one out of sheer laziness.
After one round of stiffening and surround damping treatment I got these:
after the next round those went to these respectively:
another round makes
this:
into this:
and this:
into this:
Time elapse on these showed similar results, but I didn't save the graphs or the drivers.
