Eldritch Battery on CoC build?

I am currently using a Cast on Crit build with ST+GMP, linked with Ice Spear + Fireball.
Build:


I would like to transition to Discharge, and I'm planning on switching to this build variant:


This one uses Eldritch Battery. My plan is to get at least a 5L Voll's. Using Rat's Nest and Maligaro's Virtuosity, my ES gain is limited to Voll's (79 ES) and the boots (few ES).
Can Discipline + Clarity work well here?

If my math is correct, it'll be around 70-75 mana/sec.

No one?

Any mana helps since Voll's Cuts it in half...

...Did you factor that in to your 70-75 mana per sec?

Nope, but I ended up with 70.9 mana/sec. Everything went better than expected. :)