SquareSausage wrote: »

Ye, you benefit from the trait of your current bar, so if your front is sharp and your back is training, and you spend 90% of your time on front bar, its all good.

Yaas I ty for the info

(Where the hell did I put it.. ah, there it is!)

You can find here the behavior of DoTs and different stats. We can notice that penetration has a "carry-over" effect based if it hits on a bar where you're using Sharpened. Not only does that mean that Endless Hail will benefit from Sharpened on your backbar, but Endless Hail will still benefit from Sharpened while on your front bar, regardless of the traits currently in use on your front bar.

Do a simple test with white crafted weapons on the front bar: no trait and with Sharpened, and you will get exactly the same damage ticks.

What that means:

• Second bar trait IS IMPORTANT as Penetration carries over from the bar you are on when the dots hit the target. So your dots will do more damage from a sharpened bow compared to another trait even on the dual wield bar.
• Swap Canceling Poison Injection means the “Impact Bar” of Poison Injection is Dual Wield, which increases your dot damage for the whole duration.
• If you cast a Beast Trap on your Bow bar but it activates on the DW bar, DW is the Impact bar.
• If you cast a Poison Injection while Warhorn ran out and Warhorn gets applied afterwards, dot damage of PI will not increase.

(Props to @Jeckll for the image. Source)