Technically most enemies are somewhat stealthed even while on the move, according to this video: https://www.youtube....?v=5ML4oXjG6ag. Increasing your view range past the maximum detection range will definitely help with earlier detection of enemies who have a little bit of camo-factor that's deducting from your effective view range vs them.
Oh, and I also just found out that the AufK Panther can mount the Konisch. I'm suddenly immensely interested in it. One of my favorite weapons of WWII, really obscure, the tank mounted variant (Kwk) was never actually created and only a limited run of the conventional towed anti-tank version (Pak) was produced. But it was potentially one of the most powerful anti-tank guns of WWII.