Interesting. Shame you didn't do the Trifid, which has a blue reflection nebula and is supposed to be badly affected by the CLS filter. The is a little patch of reflection nebulosity in the lower right of the image next to a brightish star. It's there in your image but definitely knocked back.
You don't seem to have any issues with star colour, but in general everything is more red that we usually see from images of the Lagoon that are quite pinkish.
On the upside your image is lovely.
Personally I'm still conflicted as to whether to get the CLS-CCD or the Hutech LPF-P2.
Thanks for sharing your investigation with us.
Cheers,
CAm