I have a Tiny Tach which works fine. However, I can't read it when the light is bad. I like to fly at sunrise and the low sun angle makes the display unreadable. I am looking for an old style tach with a regular old style dial with a white needle that will work with a magneto or the Great Plains secondary ignition. It is a waste spark system so the tach needs to work with that. It also needs to be no larger than 2-1/4". Any suggestions for a decent tach that won't break the bank?