Hi Doug,
As you look at the thumbnails - 1st is unmodded, 2nd is modded.
I didn't think you would have that much trouble identifying each!!
2nd pic is significantly "redder" to my eye - with a bit more detail in the fainter nebulosity away from the heart of the pic.
But I think you've gone straight to the heart of the problem.
I too expected a bit more Ha oomph from the pics!
Doug
