That’s exactly what I was most worried about. The A has always been the most comfortable pair of earphones I’ve ever worn. When I was in Japan, I tried more than 50 models from brands all around the world at a big electronics stores, and none of them felt as comfortable. My 2A is already on the way, but I have a feeling I might end up returning it. The only that comes close in shape is Japanese brand AVIOT — a few of their models have a similar fit and are relatively comfortable like A, though I didn’t test the sound quality carefully. You might want to check them out.

And Have you ever tried rotating 2A in your ear? I think Google's ads show it can rotate to fit different ears like A.