I was excited to try impale on bows, since several DH sets buff that skill, some specifically name it. My best DH ethereal buriza for awhile had a near perfect Karlei’s roll. Tried Marauders, tried Nats, and yikes, impale is just a very very weak skill, fully decked with holy point shot and either 5 sentries or the Nat generic buff. I did not enjoy it at all, and tried all kinds of ways to make it more playable or more powerful for pretty poor results. After this, I just started trashing any DH ethereal with impale on it.
I also felt bad that the Shadow set can not use any ethereal without losing its multiplier.
I feel both the ethereal impale bows and Shadow set can be addressed by just bumping up the base damage of impale by a large margin. That way, people will be happy to play Shadow without ethereals, and people who get Ethereal bows with impale on them would not just trash them automatically.