Have any of you used the Dakota Digital Diesel Tach Tachometer Adapter DSL-1 with a gasser tach? How did it work? I have a 1980 Rabbit pickup and bought a nice year compatable tach/speedo setup from a scirroco (2 round holes for speedo and tach). I am using a "w" terminal alternator to give the signal. Does this converter work well? I don't know that I want to play with changing the tach resistors if I can help it. I would appreciate hearing any experiences with this kind of approach.

I have read some recent ideas about pickups, so would be open to soweone who has converted successfully to one of these approaches that is simple and the parts resonable and easy to find.
Thanks,

Greg