Couple of questions on sheetmetal/bodywork

Well, I psyched myself up enough to go cut my new sheetmetal, & finally got out to the garage today. I started playing around a bit and found a small tab on the door pillar that was hanging up the corner of the quarter panel. Got that cleared and it lined up all nice like. Thank you for all the suggestions, and now I also have a new trick up my sleeve that hopefully I won't need to use.