Sorry for the delay on this guys, busy times
Anyway, I found our 'Tea theme' was suffering from this as well so I went ahead and fixed that 1st. You can view 'the holy grail' in action in the other teas section here:
http://tea-theme.coffeecup.com/products.html
You can download the updated theme here:
http://bob.coffeecup.com/storage/temp/Tea-holy.rsd
Although the implementation is slightly different (this theme uses fewer columns and column stacks), the principles are the exact same. We have a shirt for the 1st one that posts a link to a holy grail version on Steve's original layout including two (4 --> 2 --> 1) column stacks!
The future of web layout has arrived and it's called CSS Grid. CoffeeCup helps you to get ready with a free guide, the Grid Builder app plus cool demos & themes.