Thank you for your comment and opinion about HaRGB. As you mentioned, its not easy task to blend much brighter Ha with RGB data. I personally prefer pinker results ... i saw a lot of deep red version of this object (HaRGB) and i dont think that its more realistic. In pure
RGB image, california is much more purple/magenta, then deep red. But as you said, everyone got different personal taste and opinion about "right" colors