IO540
It is my experience that there is no one correct way to fly a light aircraft. I, like a number of other pilots have a GPS with a moving map. I have experimented with it but I almost never use it, preferring instead to get a string of numbers, which allows me to manage my flight and refer everything back to my paper map. This has the advantage of integrating my DR navigation with the GPS and the VOR, it also allows me to carry on with little problem if the MOD decide to jam my GPS.
I am perfectly prepared to believe you do not infringe CAS and I know I don’t, so our systems both work. It is the low currency PPL who gets into trouble, probably flying a club aircraft with all the toys but insufficient brain capacity to hold everything together through the rust.
Rod1