UE Grenades or Impale

I have been running a Ue grenades build on my demon hunter for solo play, and I've hit in the 80s with a few primal pieces. I see on leaderboards that almost everyone runs impale. Even though I have the primal pieces is it worth switching over? Not to mention I have pretty good rolls on say hellcat waistguard and depth diggers.

I've given it thought though, but I can't seem to get any good Karleis Point or the quiver. Same goes for ancient shadows gear