I'm now a level 52 archer (specialized on throwing weapon) and I've got a 20 in the Bleed skill. I see that this skill from 16 to 20 don't gain nothing, it's normal?
I search on the net and I find this table:
http://www.gamebanshee.com/dungeonsi.../ranged-12.php
In the bleed table from 16 to 20, time, chance to cause bleed, Damage per second, are equal ... it's a bug?