on my x-52 i got the "D" button for zoom toggle, when I first up I hit zoom toggle, then use the keyboard keys to zoom it in all the way, so while I am engaged I can zoom in real quick and see the nme con up close and decide what to do from there, I try not to fire while zoomed in, and never fly with it toggled on, very quick peeks at the nme con only.
oh and I flew earlier today water looked just fine.