It depends on how many you have. I’m still north of 800 and they are doing nothing just sitting there. I plan on stopping the splitting at around 400.
With all the potions I gain from these accounts I can split around 5 every couple of days. May as well make some use of them.
I've only got about 250 Chaos Packs and 200 of the Rift ones.
Rift are different, there was nowhere near the amount of CL made. I still have 400+ and am reluctant to split any of them.