Unlike myself, most professionals use a harder reed.
As near as I can tell, it's a (gender-free) machismo thing — or rather, that's half the reason people do it. The other half is that you do tend to get more consistent vibration out of it, once it starts vibrating.
On my bass, I've found:
- Fibercell definitely gives me a more sax-like sound - raw and edgy
- Bari reeds don't work for me (on any instrument)
- Legere blue-label (regular) play nicely, but are missing a wooden reed tone
- Legere black-label (Signature) are closer to the real thing
That said, I normally play Van Dorens, prefer V21, but will slide down to V.12, or blue box, depending on what's available for the clarinet I'm playing. (eefer, beefer, alto, bass, contra alto)
However, for outdoors use, it's Legere all the way. A Legere 2.5 for our community band's performance of the anthem at the Royals (vs. Twins) game on the 13th.