This question was recently asked on one of the striped bass forums. Here’s my answer:
- Take the intermediate line off your reel, wind it back on its spool, and return it to its box.
- Put a floating line on your reel.
- 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.
currentseams.com 
Steve, I wish I could believe that, (I want to believe that!). Even the great Abrames and Bondorew went to a intermediate and sink-tip at times. All I know, after a hard night using floating line, is that I don’t know much at all, and I need to be better, more sharp, more intune to what my line is doing.
I give you permission to believe. Virtually every striper you see on currentseams was caught on a floating line. It is not magic. It is not difficult. You don’t need to have special fishing gifts. If I can do it, so can you.
To clarify, Ken said in Striper Moon that he used an intermediate line 1% of the time. (I think he was just being polite.) 🙂
God, I love clear, concise direction. Especially since the only line I own that will sink has a six weight sink tip for SM Bass. I imagine answers would vary if we were talking about boats.
I carry sections of T-11 of varying length. But I prefer an integrated full sink tip with a floating running line over the sectional approach.