Well we are getting into details here, we both obviously have too much time on our hands (or our easily distracted from our day jobs),
when I eq (i am doing it now) dry, my tubes often stay open for a while, like now, since the start of this sentence (i type slow) they are open without me doing anything. I can here "server" sounds better when they are open, almost. To close them I sometimes must swallow.
I have done this in a steam room before (I seem to have lots of rooms at my disposal?!) and they stay open for 15 or so mins after EQing (again, without me doing anything). Last time I did this I ended up with some kind of infection, and have been weary to keep on playing. I am sure eternally open tubes would lead to worse infections again.
When I dive in the ocean, all of this goes to hell, but some strange thing works out. Bear in mind here that I have done tons of freediving and taught and seen many more freedivers. I still can't explain it though. Basically, I EQ on the surface, and feel nothing until about 5 or 6m deep. Often when I dive alot this extends to 12m or so. A 20m dive for example with take 3 eq's. This is not good, just how I have become as a lazy spearo. There are only two explanations here:
1. My drums have got used to it and are flexible and don't hurt
2. I do something else or hold something else open in between nose-pinch EQ's.
You can see some videos of me doing CNF dives (using hands to eq and swim) in which I can not be seen to equalize (but I definitely do) they are just few between, but not simple or soft.
In general, as everything, EQ improves slowly with time. I EQ when I burp (accidentally, of course), yawn, or blow my nose. My ears (de) equalize or pop when driving up with only 100m of difference. Basically, the whole deal starts to get more sensitized to the task and starts working better at it.