Here's my situation:
I bought a Meluna classic medium a few months ago. On every cycle there are a few days (of heavier flow) that the cup leaks, even though the cup is fully open and forms a vacuum, and when i remove the cup it's not full.
Could it be that the cup is too soft?
When i insert the cup it never pops open by itself, i need to "help" it to fully open, but once open it does create a vacuum.
Should i purchase an harder cup? I was thinking about getting a Yuuki classic.
Any advice would be helpful.