Sorry, but the method you are trying to use is wrong. Please have a look at how it is accomplished in, say, Fuji S5. You need to replace noisy and blown pixels altogether. There is no point in mixing good with bad.
If you are smart, do it on per channel basis.
Finally, you may want to check if you understand white balance well enough. Raw without white balance application looks green, search for UniWB.
Sorry, but the method you are trying to use is wrong. Please have a look at how it is accomplished in, say, Fuji S5. You need to replace noisy and blown pixels altogether. There is no point in mixing good with bad.
If you are smart, do it on per channel basis.
Finally, you may want to check if you understand white balance well enough. Raw without white balance application looks green, search for UniWB.