Hammond 159zl as clc choke

So...I just tried a pair of Hammond 159zl chokes in my f5. 23v rails, dual pair of mosfets. Replaced crc setup. Whoa. Iam liking what Iam hearing. It not placebo.

Do these things (Hammond chokes) break in?

What's the best place or position in the chassis to put them? I could mount the further away from the boards with farther leads or closer to the caps with shorter leads.

Is it advisable to twist the in/out wires on the chokes?