This question was recently asked on one of the striped bass forums. Here’s my answer:

1. Take the intermediate line off your reel, wind it back on its spool, and return it to its box.
2. Put a floating line on your reel.
3. Never look back.

🙂

Stripers don’t care which line you use. But a floating line places you in charge of the presentation, so you can bring your fly to the fish. Not vice versa.