NBRGBCombination Script - dealing with star contribution

[joelshort]

I'd like to test an assumption with the NBRGBCombination script, which I think is awesome BTW. 
In very simplistic terms, am I correct in saying that this script blends the narrowband image into the RGB image such that the brighter parts of both are retained?  In other words, if I'm blending Ha into the R channel, the R stars will be maintained while adding Ha signal to the nebulosity.  In this scenario the background and stars of the R channel are retained.

Is there a way to do the opposite, add the star information from the R to the Ha image?  So basically the background and signal of the Ha image is retained while the stars from the R are added to the Ha?

I'm still a dummy with PI, so please use the dummy version of your response.  Thanks in advance!

[jerryyyyy]

Not sure how it works, but as long as you are fooling around, you might check the AIP script also.  In their tutorials they say just get all the stars the same size before you combine narrow band... piece of cake! 

A basic idea that I also have not mastered is to de-star the image before you stretch so as to not bloat the stars.... another piece of cake.  A program called Straton is supposed to do this, but has never been perfect in my hands. 

[chrisvdberge]

I'm not familiar with this script nor with Ha-RGB in general, but couldn't you just 'destar' the RGB image and then add them together?