You know, bad said several times not to fill these things right up to the seal. That's probably the problem right there. I never had any issues with this, but I only fill to the bottom of the cup - I think that's how you are supposed to do it.
yea, i been doing that, even like that, i'm still getting a ton of air pushed around and luck if it doesn't leak somewhere, i must be doing something wrong. plus when you do that, you are losing are wasting half the vision, the CE2's i can fill up to the seal.
but at any rate, even filling to the bottom of the cup, i'm usually getting juice being displaced to places where it shouldn't go, which i guess makes sense as you are stuffing a seal into there, the air has to displace somewhere.

