I understand where you are coming from. I am going to stop by Advanced Auto on my way home from work and I will do a wet leak down and see what happens. What should I use for the test? Paint Thinner? I don't see myself pulling the engine and doing a complete rebuild at this point in my life. I have a wife who hates that I spend so much time in the garage, a son in his first year of college and I just found out the subframe on my 08 Police package Charger has a bad subframe so money is not easy to come by. I am going to clean up the pistons the best I can and hope and pray that whatever you don't like about #5, I think that's the piston you're referring to is from a previous problem. I'll keep you all posted.