http://tviv.org/MythBusters/Barrel_o...l-Sking_Wallet
Busted
Of they could just be using the wrong type of ferrous metal in the stripe, that has a massive impact. That said I had trouble with only 1 monthly ticket in 3 years, despite being used up to 4 times a day 6 days a week.
http://en.wikipedia.org/wiki/Magneti...ipe_coercivity