Hey! Thanks Steve! I didn't even know about that site. It suggests 2-3, so I guess my task is to work on executing that trill. I've got a couple weeks. I know the piece well, so that should be enough time.... or I can just pretend I'm sick and can only do the violin sonata.
Thanks, Biscuit - I would try the 1-3 combo if I didn't need the 1 for the A. I need more fingers.