Impale Phys Frenzy Bow Champ/Slayer

Hi, guys, I came up with an idea for a buid last league using new unique bow The Gluttunous Tide and I'm looking for options to improve the build without mirror tier items, maybe you could have some ideas.

The idea is to make every 1st attack gain max frenzy charges and every 2nd attack to lose all of them to proc additional projectiles from the bow so build does not need to use GMP/Volley.

I decided to go with LL Petrified blood setup to get more auras and I got pretty sweep ehp in PoB.

I am thinking on how to improve build further but I didn't test in in the game yet.

Main links - I was planning to swap Barrage support for single target and Chain support for clearing.

Why Brutal Fervour if I have petrified blood already? To use Strength of Blood keystone and still have leech, I can get culling strike for one passive point anyway.

I reached higher dps on champ, but it has lower survivability.

Slayer pob: https://pastebin.com/yZSt2nJc

Champ pob: https://pastebin.com/zF8BVS1X

Unique items explanation:

Fledgling - seems like too much damage in cost of allmost nothing, but u have to stay pretty far from mobs.

Ceaseless Feast - seems like the only reliable way to get Endurance charges on bosses, on maps maybe allocating Disciple of the Unyielding would be better.

Darkray Vectors - pretty much bis.

Ashes of the stars on champ - used to be cheap last league, reservation efficiency (for life reserve too), quality, top notch amulet, but now doubles the cost of the build.

Arn's Anguish - a lot of damage at cost of endurance charges.

Forbidden Flesh/Flame - if slayer - has to be Master of Metal, if champ - Masterful Form.

I also had deadeye trinity tornado shot version, much less dps there, should be faster, but then omni ts appeared and build looks works compared to that, but I can give pob if somebody's interested.