Thanks everyone!

OK, I'm gonna go with the Matco W60 series (6" by 4.375" with 1.25"
axles), which seem appropriate for my aircraft. (I'm already using
Matco master cylinders.) They're a bunch more money than the Azusas,
of course, but I appreciate that this isn't a good place to try saving
money. (I still can't justify the Clevelands, though!)

Regards,
Greg