Came across the link below apparently some guys who worked for Crane and designed their current HI6 ignitions, and went out on their own at the time Crane was changing ownership.
http://www.daytona-sensors.com/downl...D_Teardown.pdf
Good way of using Crank trigger and programming advance curves in for the street. They appear to be a quality product but dont seem to be that well known which has me a bit curious, I guess there is already good choices out there...