flounder fishing from the surf

Hey all, I have a few questions regarded fishing for flounder from the surf. I've never actually done it before and wanted to get some quick info before I ventured out there.

In terms of location, is a shallow muddy bottom the best shot? I know a few south shore back bay spots that are pretty muddy and warm up pretty nice when the sun is out and figured it might be a good shot

Also, I have easy access to loads of mussels..would they work best in terms of chum? Should I crush them up in a chum bag and throw the tied up bag out near where I'll be casting, or should I let the scent drift out from the shoreline?

Lastly, are they fished similar to fluke, except no drift or retrieve? I'm thinking a similar set up with a 3 foot leader tied to a 3 way with a sinker?

Any help you guys could give me would be awesome. I can't wait any longer for the bass season to open so figured this would keep me sane for a few more weeks.

Thanks