My advice (though since this is a new season and the system could have changed, but I doubt it) would be to wait if you don't see a good seat Saturday. The production releases usually come within a few days of the show and often some good, and sometimes great seats pop.(I usually go this route, only buying a seat I really want early, passing on the mediocre in hopes of doing better later, it works more often than not, though not fool-proof). You just need to be vigilant checking TM a few times daily for released seats, especially the closer to show date. Of course this is an odd situation since there are only 19 days from on-sale to show, so they may drop more of the good seats right away than normal, so Saturday may produce some good seats. I jst hope its not too cold on May 20.
Rik Emmett, eh...Fight the Good Fight baby.
