I'm in 105, the 'friends of UEFA contingent' are usually grouped at the back of the block and aren't too much of a problem.
The away fans who somehow got tickets in the City end are a problem. The terms and conditions of sale are clear - away fans are not allowed to purchase them tickets. Tell this to the stewards and they will (off the record) tell you that the club have told them to turn a blind eye. There will be serious trouble in 105 one of these days, probably on the 10th April, and the situation is entirely avoidable - if I report the bloke sat next to me is an away fan he needs to be thrown out - he bought his ticket under false pretences.