Amy......If I take a grey textured vertical siding and "blend" a reddish-brown color with it I get a reddish-brown textured vertical siding. I gather what you are telling me is that I CAN in CA just "tint" (semi-transparent) with a reddish-brown color in a way that the grey is still showing through. I've never been able to get this look. Could you explain or show an example how this is done. Or if you could point me to a video or somewhere in the ref. manual on the procedure, it would be much appreciated. Thank you and have a great day.