I have had my 2002 Sea Ray for about 10 years and never had a dist cap problem with anything before. I have tuned the boat using Mallory cap and rotor set and one example was last year when the boat shut off. Had an old cap and put it on and the boat started right up. Replaced it with a new cap and start of this season the boat started right up. Next day would not start but kept backfiring when cranking. New cap and it started right up and seems fine. All old caps look fine. Maybe there is a better brand? Thank you. RR