MSD and Tach

Gentlemen - I see many people having trouble with tachometer operation when fitting MSD units. I like the MSD and use them myself, though I am not sure why anyone would go for the series 7 when the less expensive series 6 would do just as good a job. In any case, the following site addresses the problem and may be of use wih the Lambo/MSD combination. Bill www.engravers.com/tiger/tech/stoa_tech_9904.pdf