Quick run from Llano to Kerrville, Texas. A 40 minute trip with the Piper Arrow, practicing the localizer approach into Kerrville with the vacuum pump out (it's much harder without an attitude indicator. It's the blue/brown gauge that's lopsided, and above the compass-looking gauge). Mild success... was going left and right of track, but managed to stay relatively center. I "simulate" instrument conditions by pulling the outside screen view down so that I only rely on the instruments. Instrument training requires you to do so (with a safety pilot in the other seat if simulating, of course!).