I have both an Alton and a CNW in service and they both have over 20k miles on them over the years. When people ask which one is better, it depends. The Alton is subtle and looks better on a stock bike in my opinion and you don't have to run a belt, it did shear the nylon plugs after about 4k miles but one phone call and I had 2 new sets within a week at no charge from Alton. I am not a fan of the stator and nylon shim game as it all seems fragile versus stock if clearance isn't exact. The CNW seems bullet proof and looks like a piece of art with the inner billet cover. And with everything Matt does it is industrial and problem free. If I could only have 1, I would go CNW for reliability and customer service and quality of the parts. I also run Matts kit on the mk3 with his starter motor, and upgraded MK3 starter gear / sprag and it is flawless. But if I was sneaking a starter on a stock restoration, I would go Alton so it wouldn't be a focal point looking at the bike. I also have several stock MK3s that start with the tap of the button hot or cold with all stock components........