Happy trails Mike. 15 MPH is amazing on a fully loaded touring machine. Take time to visit and chat with locals. While the geography is fun to look at, the real treat is visiting with the folks. Have fun, be safe and keep the wind on your donkey!!
I should clarify, I don't tour fully loaded. I credit card so no tents, sleeping bags, etc. I use the Ortleib front roller classic panniers. Just one set, so I am pretty light.