Hi @jamesp -
hhmmm… I have an ultrasonic cleaner as well, but exclusively using it for PCBs (which is my core business) so would not want to contaminate that with resin 
Curing time is a drag though… 1 hour at 70C. It now has me looking into the Cure2 despite the fact that there I was not a week ago ready to box this thing up and sell it for pennies in the dollar