Crowds Typhoon Lagoon on H20 Glow days

I am planing to visit Typhoon Lagoon on a saturday (late august). I just saw that there is an H20 Glow after, so it closes one hour earlier.

Does this affect the normal hours crowds? I mean, at MK the crowds are lighter the party days in the morning, but I don’t know if that is the case with TL

Any hints? :blush: