I've had some mild fair isle experience before (a swatch, a mitten I never finished) but this sweater has surprised me with how well it's been going so far. I'm into waist increases and am really enjoying the process of this technique. The pattern rows are also relatively easy to memorize--didn't think this was something I'd be able to do on the subway on my way to work, and am glad to have been mistaken!
I gotta give a big thanks to Karen at Two Swans Yarns...she only had the old gold in the DK weight and suggested I might be able to get away with using it if I didn't feel like waiting for the Spindrift. It's been working out really well. I'll post a pic soon.