How much pierce is recommended for max ice?

I’ve been trying to find a number for ice max pierce. I’ve seen a few numbers thrown around. For other schools some say you need 50%+ pierce, some have said for the last world darkmoor, you need a minimum of 41% pierce. I’m pretty unfamiliar with the later arc 4 worlds + Darkmoor since I haven’t gotten up there yet so idk if this is true.

There’s not really a lot of information out there for ice lol, I guess the school is just super unpopular. People post their stats sometimes but it’s usually lacking in something for me.

https://www.wizbuilder.net/#v4:c:1BCaYQuFRtSkcTSBRXMLN1afN6CXeCNpnpkHkFJ1TQd5LLiBoZkNdh9Y2tU6fu2KQCD9u8sPVT6vGuAJAWV6YGaahbN4p5u9iTvJXHTP8HhAhhpMWszaSQH3NZReKat1hsGAwYw1QXKR5hYcwe1V8ywMvnxvdzcSTByarqNXdcD138EcVVwV9CBL3Ub

I came up with this build for when I do hit max for my ice. If you don’t wanna click the link, the build has 199% damage, 90% universal resist and >100% resist to storm and death and 41% pierce. It’s all farmable without raids I’m pretty sure which was my goal. Would this suffice? I could get 51% pierce if I swap one of the damage jewels for pierce and take away pain dealer or spell defy for armor breaker. Don’t know if losing 17% damage or 10% damage and 6% resist is worth just to get an extra 10% pierce. I would probably just decrease damage and have 182% damage the same resist and 51% pierce if it’s needed.

Any help would be appreciated!