The RC65X as well as the RC65RX will work perfectly fine with the 44/41 when used in IR mode. So the installer did not necessarily do anything wrong by leaving these remotes. Sometimes if our warehouse is short on the 71s we leave the 65s. It just depends on what is on the installers truck. There is no rule that says we absolutely "have" to leave 71s with 44s/41s. Glad to hear that you got 71s shipped to you free, but just trying to clarify that the tech did not actually do anything wrong per say.