I've always loved Straight Back- definitely one of my top 5 favorite Stevie-penned Mac tunes. I don't have a whole lot to say about it otherwise- it's just a great song. I put it in the same category as Sisters, Gold Dust Woman, Rhiannon, Destiny Rules, and Illume. To me, Stevie's mystical rock Mac songs are Stevie at her absolute best.
However, I don't hold any hope it'll ever be dusted off for a tour- but who knows? Sara & Sisters Of The Moon returned against all odds; Beautiful Child & Storms were some of the most unlikely tracks to ever grace a 21st century Mac stage, too. Stranger things have happened. Like Christine's return!