If we're talking about women... my wife was very happy with comfort on the Fischer Amps but she had problems when removing the SD-3 out of her ears due to the strong suction.
She made a rather pained grimace and said it had a bit claustrophobic.
So much on the subject with the small ears.
Wide-bore foam tips are your friend. I can't tolerate iems like the SD3 and TG334 without them.
BTW, Ultra how are you finding the X3?