My question would be why so many 320s?
I only use 1 in my coolers. Especially if these are something you're not always digging around in with extended open times. Just adding some new cigars periodically to a 65 will charge them a bit the way most places ship cigars (more so with 62s).

If you just cut your number in half, worst case is you recharge/swap out more often. Just a thought.