I just mocked up a couple of examples in Quilt Wizard - one with strips the same and one different. I liked the strips the same too but I think the sashing effect is more pronounced with the outer strips narrower. This is a pattern I've heard mentioned quite a lot on the board but never really investigated - I thought 'simple' would mean 'boring' but it isn't at all - just goes to show!
Hey BTQ - get on with your painting - you've started something here! :D