Hi there,
I had a double mastectomy and have used both the soft boobs they first give you and also the Amoena prosthetics.
I now just use the Amoena with the Berlei bra as I like the weight of these. I can lift my arms without my whole bust ending up around my chin :)
They took a little bit of getting used to, and they are definitely more comfortable in the Berlei
I am so used to them now, I don't even notice them.
I think it just has to be trial and error. You will know once you have worn them both for a while.
x