So this trait has not been working correctly for a while now, I posted about this almost a year ago and it still has yet to be fixed.
Rank 1 (Works Properly)
Changes still from 2 attacks into 1 attack + 12 second bleed with damage tick every 2 seconds.
Rank 2 (Works Properly)
Increases Bleed damage by 100%
Rank 3 (Doesn't work as description states)
Change bleed from 12 Second with tick every 2 seconds to a 6 second bleed with damage tick each second. (This part works)
It also states it increases bleed damage by another 100% but it actually decreases the bleed damage by 21%~22% as shown below