First, I found the product easy enough to handle. For me, the big is too big: the two once made, tend to rise on their own, suddenly ... you still have to get them, so to speak! And the great is a little too hard to get out. (Note that I measure 1m80, and everything being proportioned, well ... here, no need to draw you a picture;)) Thank the stem, so, handy !! I do not see how I could do without, and I do not cut, that's for sure !!
I was afraid that the small is too small because I had the impression it was all flattened inside. But once tested in real conditions, impeccable, zero leakage.
And it's still great to break free of those damn disposable products need to take with you anywhere and buy super expensive emergency in monop 'corner when you forget. And finally, manipulation does not take longer than a towel change / buffer.
Note though that we will have to say goodbye to your nails, at least for the first tests. That I had not thought of before being faced with the evidence>.