Tulfall Discharge/Freezing Pulse T15 Showcase (also looking for advice)

Video: https://youtu.be/jI05_q3VBtY

This is a Tulfall Hierophant build stacking minimum power charges with Badge of the Brotherhood for frenzies. Tulfall offers flat cold damage per power charge as well as increased damage per frenzy. With Tulfall, you lose all your power charges on reaching maximum and generate a frenzy, but with 7/8 minimum power charges, we always stay at 7 power charges and keep the flat cold benefit. This also means we have rapid frenzy charge generation since 1 power charge turns into 1 frenzy charge.

Freezing Pulse is a fast attacking skill with high added damage effectiveness, so it made sense as a main skill for both damage and frenzy generation. Discharge is a secondary link to chill bosses and assist with clear, as shattering a pack with Discharge generates frenzy charges from Tulfall, leading to near 100% frenzy uptime while mapping. Bonechill on Discharge makes bosses take increased damage from the chill effect, though the frenzy generation isn't quite high enough for this to be that effective (even when dual wielding you only get 1 frenzy charge on reaching maximum power charges for some reason).

Right now my main issues are with single target bossing, since I can't generate frenzies fast enough for Discharge to be that useful, and my Freezing Pulse currently only hits about 1m dps (1.5m with more invest, but I'd like it to be higher). Also I die to chaos damage a lot, but I think that'll be mostly fixed with better gear (at like 0-20% res instead of -36%).

Other interactions:

-Zealotry + Arrogance for Low Life (Ivory Tower)

-Clarity, Vitality, and Precision auras

-Arcane Cloak + Arcane Surge for max buff (this might be weakening me to chaos damage)

-Arcanist Brand with Wave of Conviction, Assassin's Mark, and PCoC

-Big elusive when I actually get boots

-Rotgut ez

Current POB: https://pastebin.com/0vjPR56k

POB with better gear: https://pastebin.com/aHTmvJUA (use this as a base)

I have some extra points left at level 95 (and honestly the whole southern branch of the tree can probably be cut for 16 more points). Clusters are tempting but ones that would actually make somewhat of a difference are like 15ex (ie 3 notable Blanketed Snow with proper placement). I'd rather keep total additions under 15ex ish, but you can go crazy if you want I guess.

I'm kinda stuck with how to take this to the next level, so suggestions would be greatly appreciated.