Jeff,
I used a wet SIRS compass that was recommended to me. My first 150
hours in the plane used that compass as sole means of directional
control as I was waiting for my EFIS system to be shipped to me. Very
happy with it, mounts atop the glareshield and works very well. Works
much better than a vertical card compass, and doesn't take any room on
the panel.
Micah Froese
Lancair Legacy
240 hours