does anybody have experiance w/ gyro compass? These are mainly an areonautical instument. but i found that with all the movement on our cats it difficult to get an accurate compass reading. I seem to be constantly "marking" then take an avrage. The vertical mount of this style of compass has some appealling qualities. From what i'm reading about these with a little "McGyver" enginering it might be a neat tool on the boat. I'm a safty equipment freak so it would be a tool i would still carry a normal magnetic compass and a GPS. but for ease of use while sailing (hands free and accurate). it seems like it would work nicely. any opinions or information whould be appeciated.