Jim, I know this may be useless info, but I have two D2000's, one in my street 750, the other on my 550 I'm racing. Both were bought in that fuzzy period for Dyna. I had a pickup problem that they eventually came good for. At that time I talked at length with one lad there and he claimed they had approx 4% problem issues. It seems to me they have worked out much of their inconsistancies. Point is these ignitions are the cats ass in so many ways, I wouldn't hesitate to use it either.