I've been working with Vincent's scripts for HA-R combination. Generally, I think they do much to improve the red channel, but the effect seems to "get away from me". In other words, I end up with overly enhanced HA. I have used the formulae as given, swapping in 70 and 5 for the values in the first equation (Astrodon 5nm), then widely tinkered from there, going off of visual effect for the most part. In the second equation, I have tried a variety of constants, but for the most part, I'm just winging it while looking for results.

Can anyone provide more consistent guidance? These equations definitely solve the salmon colored wash out that is typical of straight HA/R combination.