I've experienced it with both those attys too (never a chalice though)
Anyway juice can only flow back into the bottle right after you squonk .... the other 99% of the time it seeps back down and into the catch cup. It cannot go back into the bottle all the time because there is no where for the air to escape and let juice return. Usually if you getting juice into the catch cup its because things are just too wet .... try squonking less and vaping it close to dry each time before you sit it down.
The oring - or a thicker oring under the atty can seal that connection so the cup stays dry.
Also right after you squonk (when juice can return to the bottle) make sure the mod is straight up. If its tilted any air will go back down the tube instead of you excess juice ..... then the excess will seep its way out eventually.
Hope some of that helped.