I can't answer most of your questions, though I got a look at the seating chart for Boston at least, before TM forced me to let them pick my seats (!!!) and it looked like well over half the arena was available to purchase, so hopefully you'll be OK. I do know that the problem with TM was basically poor planning and crap infrastructure which are always their problem(s). Today's great idea: The Foo Fighters presale also started today at 10 a.m. EST. Incredibly stupid if you ask me. Monday, frankly, will probably be a debacle.