There's no option to play with different colour channels in the curves settings in LR - I think you need photoshop for that. You can play with the Hue, Saturation and Luminance of different colour channels in LR though which I do quite often.
cool yeah that's the method i tried on this. I will keep on playing with this method try and nail it on in LR. It seems I do really need to get into PS though.
i do want to try cross processing in PS. I guess it just needs playing around with to find desired effect










