Ratickle
Founding Member / Super Moderator
I don't think it is possible for a racer to get in his boat with a laptop and reprogram the 525 ecm. It is my understanding that only Whipple has the access codes and is limited to the number of flashes he can perform. He has stated that in other threads.
If you are truely concerned about this simply put in an ecm claiming rule. What does an ecm cost $1000? You just let the inspector know once the boats are in the water and he can seal the hatch until after the race and give it to you. Claim it for a grand and in a worst case you have a spare or one to sell on ebay. No big deal.
Another possibility, the sealed hatch rule already exists.