Is'nt it about time the government got it's finger out and made it law to have line glasses in all pubs to stop customers from being ripped off.
Been done to death on here has this subject in it's various forms. The rules are quite clear, up to 5% head, the width of a pencil. A line on a glass can still be abused, and top up's still have to be asked for. Vote with your feet mate.