hi Linda
i mean i've been to 20m with one mouthfull from the surface. i probably equalise the mask once or twice on the way down. i could never go to 20m without equalising the Sphera... i could maybe get to 6-7m before it gets uncomfortable... i don't like to let my mask squeeze. i try to equalise it fully if at all possible.
30m without equalising the mask is very deep. i'm wondering whether you have air coming through your tear ducts. i heard that Herbert Nitsch gets this. for some people if you equalise quite hard air comes through into your mask, so it equalises or partially equalises without you having to release the nose. maybe you could test this out... put your head under water without a mask, and equalise. ask Roland if he can see any air coming out from near your eyes...
i think you'll need the 92m rope yourself before too long!
alun