Hi Pete
This is fascinating to see the final product. I hope you don't mind me linking, but I've been comparing to the red that came out on a pure LRGB image of mine - always wondered what added Ha might do.
https://picasaweb.google.com/UserRob...15896803809666
I don't think you've overdone the red either (and its easy to do, upsetting the purists in the process!)