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eh, you do you.
I normally just rent up, run up the ladder to Diamond and play there until near EOS.

but, I only own 500K in CP- so I rent all that out.

Fair enough i'm just shy of 70k that i own so trying to give some perspective with slow accumulation with minimal renting ;) Have seriouly thought about doing the rent for big push then chill not going to lie

A bunch of the guys in my Guild do a 24/24 system
They Rent Up
grind for 24hrs (getting 2 Quests)
when their ECR hits <60, stop
Then they wait for their ECR to get back to >90... repeat
Basically, they play every other day and still get all their quests while only renting 1/2 the time.
Easier to handle being in Gold that way- and then.... BIG push a few days out from EOS