George:
I recently installed an INS422 due to limited real estate available on my "old school/steamgage" panel. While a garmin 196 (hopefully to be replaced by a 496) provides about 90% of my pilotage requirements, the Val will allow me to shoot precision approaches without replacing my SL40 with a 30. If you think of the light bars as needles, it's not so different than a conventional head. While it has an auto self centering "to" function, setting up radials takes some getting used to and is kind of a pain if you need to switch back and forth between two radials for position fixes. On the plus side, full deflection in either vertical or horizontal plane is 10 dots in each direction. So far, I find this easier to help keep my nose where I want it. Incidentally, as a backup to Nav and Comm, I keep an Icom with dual capability handy. The Icom can be used in a pinch to fly VOR approaches. In my next life, I'll go glass. In the meantime, this works.
Terry