I'm not talking about marbles in the bag. They will be in the tray and I sit the bag on top.
Yeah, I don't agree with any kind of manual layering of any kind of material or media in the pot. The only kind of layering I want to see in a pot is from naturally occurring from a no-til grow.
Letting the bottom of the bag have a bit more exposure of air, is no different than what occurs on the sides of the pot as they dry.
Wouldn't ya think?