I assume that you're originally not from CA, since I'm guessing what you're asking about is the stuff you swirl out of a machine. The regional name for that here is soft serve, and the answer is no, this is all hand churned.
No they don't have custard.
The flavors vary as the are all made in house. Staple flavors like vanilla, praline pecan are available most often. They do give out free samples if you are unsure about a particular flavor. You are guaranteed to be happy that you made the trip to this ice cream shop.
They have many flavors all made in house including vanilla.
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