Loosely vs. Tightly Packed Sphagnum Moss

[netrizone]

Hi all, I'm repotting some phals right now, and I've seen conflicting opinions on whether to pack the moss loosely or tight.

A lot of videos online recommend keeping the moss loose and fluffy to maintain air pockets and to not suffocate roots. However, I've heard others say that tight moss distributes water more uniformly.

Also, my phals were (presumably) imported from Taiwan, and they seem to be thriving in their tightly packed moss medium with brand new root tips emerging.

However, I'm still not sure whether I need to pack it loosely or tight. What do you guys tend to do?