I'm using Warm & Natural--it says to leave up to 10". . . . I thought about doing every other square, but not sure yet. I'm leaning towards doing the whole thing. . . . but we'll see how it goes when I start. Maybe I'll start out doing every other square; if it doesn't bore me do death, I'll just fill in the gaps!
I won't be getting back to it until monday :( as it's a suprise for my better half and he's off on the weekends :)