Calling out to any of you Houzzers who are knowledgeable about Benjamin Moore colors - I'm at a loss, and I REALLY want to paint the inside of my house.

I've had big test sheets of BM Blue Veil on my walls for my living and dining rooms for months. It's wonderful in all light throughout the day and night, gives some color and still lends itself to light and airy. Pretty clean color, and whatever the undertone is works with my furnishings and floor.
I haven't actually painted because the truth is, I want something just a little less blue and a little more gray. Got some professional advice that took me to Smoke and Brittany Blue (too muddy), and Seattle Gray, Silver Cloud and Silver Gray (too gray.)

Nothing else in the house is painted, so I've got free reign on what I choose. Outside of the house is Hawthorne Yellow with Simply White trim, if that's meaningful.

Anyone have any ideas?