Used the CM10 binned 2x2 on the 3366mm of the 450mm classical cassegrain. All subexposures were 30 minutes, a bit long by my current thinking.
http://www.narrowbandimaging.com/m76...2hao3_page.htm
one of my friends said it was reminiscent of a big mustachioed cigar smoking fellow: he called it the "havatampa" nebula...