How much was the sensor Glen ?
I suppose the worse that could happen is you have to buy another sensor if debayering doesn't work. If my latest clean up of the internals of the 450D does not work I may go full spectrum.
That is after I've stripped, cleaned, relubricated and rebuilt the EQ6 and rebuilt my pier to get rid of the Heath Robinson rat cage on top. I wouldn't even dare put a pic up of it in it's present state, I'd get lambasted by one and all. Maybe after ... maybe ...
This is all being brought on by the lousy skies over here at present. Hot and humid or raining. Seeing is rubbish.