An more durable alternative to S100 is Meguiars #16 paste in the blue tin. Old school and not as easy to work with, but it will bead for months.

Wedly, I'd consider using Meguiars #80 speed glaze by hand before Vanilla Moose if your paint isn't in great condtion. It's a light-to-medium polish that breaks down easily. Apply with a terry applicator in linear motions (back and forth) until it clears up a little--then wipe immediatly.