I now have a class 2 swirl that looks like this:

uud
uld
udd
bbfrrrffbrrr
buflfrfdblbr
bfflllfbblll
uud
urd
udd

It's pretty, and looks like a pinwheel from 4 of the corners, so i
call it a Pinwheel.

My current algorithm to get from SOLVED to Pinwheel is 84 qtw and
not worth publishing - I expect to reduce that substantially in
the near future.
Bill