SevenHelmet,
You need to go fly an L-39 with the original ADI in it. It's a miracle the Eastern European pilots don't kill themselves in the weather with regularity. I'm guessing it is responsible for a few mishaps of US owners. It's ridiculous... about as stupid as the ASTB logic.
Don't FSU gyros move the airplane instead of the horizon? Is that what you're talking about?
Must be part of why you can buy a 1960s-era FSU jet for a relative song.