Tornado Shot Deadeye progress to Omniscience

Hi, PoE community

In this league I decide to try Bow Build, Starts with EK Pathfinder, but after dissapointing of nonworking EK ret proj respeck to LA

It's not took a long I change from LA to TS (trying to follow Crouching_Tuna Omni TS Deadeye guide)

My current build looks like this: https://pobb.in/AKlSWHYNyk2o

The main complexity I can't resolve is how refuse from The Taming ring which are left over from LA and not loose resistances?

Should I buy Omniscience and see how my resistances will grow, and then Buy a Rare rings?

Any advice will be helpfull, thanks