This route certainly beats the main road to Dorchester. Leave Sherborne on the A352 to Dorchester. Stay on this road all the way to Charminster then join the A37 for the last couple of miles to Dorchester. Some prefer this route in reverse. There are lots of bends, both fast and slow but they are hard to read. There are one or two open bends where you can see the road layout but most are concealed. Its very hard to get it right. Not much traffic here and no double white lines so easy to make progress.