I've my left ear that it's somewhat "sensible" to the water, especially if I turn the head on same side to breath, in this event it's very uncomfortable for me to swim without a earplug. on the instructions there's a notice that urge to don't use for diving. I use a model of the speedo made of plastic that even if it don't fully sealed my ear it's enought to fix it.
I suppose that the notice is about diving from platform or springboard.
My question is : diving from the block is it safe or not ?
thanks
