Frank,

Windex is fine. I use the stuff from a Dollar store that is the same thing as Formula 409 and buy it by the gallon for the cost of windex at a food/grocery store. I think it does a better job than Windex but I run high oil content in my glow planes

Hey samolot, even us old farts in training still have pretty good reaction times. Just look at some of the top drag racers like John Force and the like which race into their late forties and early fifties. But I can't argue with ya. Video games most definitely help with the hand eye coordination part of it