In 1988 I started using Mallory because they started using digital and I never switched back to MSD because they continue to use the analog that is a little out date ( kinda like using a 20 year old cell phone). I run Mallory distributor and Crane box now in my late model. One the biggest things I liked about Mallory and Crane box is the rev-limiter, it is a lot smoother once it hits the rpm. Battery draw was one the biggest reason I switched then. Seems MSD's name got so big years ago, they could just step back and stop trying to make new and better products!! They still trying to make millions off a product developed 25 years ago, I now the 6AL has been out that long.