Currently, the only profesions worth buffing above 300 are:
- Fishing (less fish will get away, and some areas require way more then 300 skill)
- Skinning (to skin some special mobs, you require more then 300 skinning)
There are NO herbs, mines, or crafts that require more then 300 skill in anything.
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And no, you do not get better results when your gathering skill is higher then required. You can test that if you want by counting your herbs/plant ratio with caracters with differed herbalism skill levels. The only thing a higher then required skill gives you is a smaller chance of a failed attempt.
Some plants always give you just one herb btw, like the ghost muchroom and black lotus.
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Edited, Fri Oct 28 00:08:34 2005 by SuperNull