C'mon guys, this is only about the 2nd or 3rd target Geoff has tackled with the CCD camera I think. Now Ha is in the arsenal you can't blame him for having a go, particularly from Brissy skies. Its a whole new ball game getting a feel for binning, Lum and RGB ratios.
I'm sure you'll get more of the arms to come out in future efforts too Geoff, and I was actually interested to see what the Ha did for you. I have to confess this is one of the first things I tried on a galaxy when I got the QHY9, and my effort was a lot less successful to be honest (I think it was 6744 which in hindsight was never going to be useful)
I guess there aren't too many M33 style galaxies that really shine with a bit of Ha added in, especially if you haven't already got quite a few hours of Lum data under your belt.