Perks selected for Bone Curse

I am looking at ways to improve my current Bone Curse setup. Here is my build so you can see the perks I have selected for that skill: Necromancer, level 84 (Release / 1.0.1) - Last Epoch Build Planner

I am wondering, since I am not using bleed in general, if I should spec out of the 5 points I have on the left of the tree (Cloven Flesh) to instead go for Iron Maiden (2 point), Brittle Bones (3 points) and then Ruptured Corpses (1 point that I would take away from Conflation probably).

I love the skill and I enjoy the fact it helps me surviving by making sure the enemies are slower than me (they can’t kill me if I run faster than them). But I feel like having a form of culling strike would be more efficient, especially if it works against bosses.

Any thoughts on this?