[stef]

Thank you all.

I tried the exercises you suggested and they're were easy enough to do. The inflatable balloon was a bit trickier, but it worked well after a couple of minutes (by the way, good link that one, thank you).

I think I have decent control of epiglottis/soft palate, on land ! The point is it's just so hard to reproduce on land the real diving conditions, when you freefall quickly, and need to equalize in a hurry (i use BTV by the way) while fighting the negative pressure inside the lungs which builds up and wants to rob you of the little precious air you have in your mouth.

Doing the excercises on empty lungs on land with and without noseclip helps a bit to train muscle control, but when I go diving I have a hard time using the mouthfill correctly. And I don't have access to a pool, otherwise empty lungs with a mouthfill to the deep end of the pool would be more than enough to keep in shape.

I'm probably looking for something that does not exist, i.e. how to train deep equalising with a mouthfill while on land...