I would love for you to push the CSV issue again. This is sometimes how pump installers find out about new technology. Otherwise all the info they get is from their pump supply house. Of course the pump supply house is going to push what they make the most profit with. A big pressure tank or a variable speed system like the SQE cost the most and shortens the life of your pump system. This way they make as much money from you for first install as they would normally get from a good pump system in thirty years. What makes the most profit for the pump company is also the worst thing for the end user.
If they refuse to come to the 21st century, you can easily install the CSV yourself. The Pside-Kick kit comes with a CSV1A Cycle Stop Valve, a 4.5 gallon pressure tank, pressure switch and gauge, pressure relief valve, and wall mount brackets. It has everything you need except the pump, and sells several places on the Internet for $399.00. Not only is this the least expensive way to control your pump, but will actually make your pump last longer while delivering constant pressure to the house.
See this link;