I don't buy new masks that often but I just bought a new one and did the breath in test in the store and it sealed perfect. However, I took it diving and it seems to constantly be leaking, not horrible but enough where I am consistently having to clear it, whereas my other mask (same brand) is perfect. On the surface I did a quick test and put my face down with out a regulator in and for as long as I could hold my breath it did not seem to be leaking. So it seems the regulator it's self is enough for it leak, has anybody had this happen?