Haha oh no! I had considered that!
My light pollution is extreme, I image from a balcony just next to the Sydney CBD, it's ridiculous but it's what I've got...
The Astrodons have made it much more tolerable though.
If you're interested I did a quick comparison between my 5nm and 7nm Ha a while ago:
http://www.iceinspace.com.au/forum/s...d.php?t=126305
And also between my 3nm and 8.5nm OIII:
http://www.iceinspace.com.au/forum/s...d.php?t=125922
I couldn't believe the difference when I first saw the difference - it must be an even bigger improvement for you coming from 12nm to 3nm