I've got a Hutech IDAS LP2 also. Maybe my light pollution isn't too bad (but I think it is) but I seem to get better images when I use the white balance rather than the filter? Maybe the color balance is better and it's easier for me to process?
I guess to be sure I need to take some exposures of the same object on the same night with both methods to see which is best. It's a pity we get so few clear nights - very little time to experiment.
On the other hand, my images aren't that great so maybe it doesn't matter which method I use?
