well than you are one lucky SOB as well. I have tried the coin roll hunting bit. A box of halves and than got maybe 15 rolls of quarters. Nada. If you have to reroll them its a big waste of time in my opinion. This guy that claimed to find 11 halves has a want list of junk silver. Said he would pay $2 per dime. $5 per quarter. 20X face. When I asked him how many dimes he wanted he said 5! Complete waste of time. Not worth the mailing fees.
How is 11 40%ers so unbelievable? That's just a drop in the hat compared to what people have found. There are some who have found hundreds in a single box. You obviously don't know what your talking about.
I only can comment on my experience with it. I don't believe everyone elses claims either. People may get lucky and find a few but I think more skunks happen than silver finds. And I do know what I am talking about.