Breeze Ride - Sourton old A30 and Back

An adventure saturday Spokes up the old A30.  We are going to leave from my house down Fry Furlong and then over the A30.  Serios hill chug up to the Harris Arms and then a mostly enjoyable ride along the A30 to Sourton, a quick refreshment break and back the way we came.  We are going this way to get miles in your legs but the hills aren't too dastardly; still there, but much kinder gradients.  There is traffic too so you need to bring your thinking caps! It's circa 24 miles but exposed in places so can be breezy.  You will need juice, a really good energy lunch, something to snack on becasue it will be longer than an hour and wind resistant clothes if you have them.