I just posted something similar to this question a few minutes ago - before I read my replies to this post - so sorry for the duplicate info.
To all who inquired - I am now using the NB pump with the Brava domes and I am getting awesome swelling. But a few days I overpumped my smaller breast and it was like the breast kind of died, it was less full, smaller, not swelling as much.
So I backed off the NB pump for a while and started using Brava's smart box system again, but teh swelling was so much less and also uneven, I went back tot he NB pump.
I will say this - whether it's the NB pump or the Brava smart box I get swelling every time, And over time, the swelling is lasting longer and longer. The NB pump gives me bigger swelling and more quicly but the smart box will do its job as well if given teh time.
As of now, I am retaining swelling for at least 15 hours, but only after following an overnight Brava session but after those 15 hours ar eup I am back to where I was with maybe just a teeny tiniest bit of possibly retained growth.
My exp after my overnight brava session is this (which is about 12 hours) - I wake up to C sometiem small D cups that I keep for about five to six hours and then the parties over. I will slowly deflate to various b cup sizes. After about 18 hours i am back to an A cup.
I think this system is working alittle bit but it's really hard to say. I do use the NB domes from time to time and I will say this - after using Brava for these past 3 to 4 months, I can actually get decent NB swelling now in about an hour. Before Brava I couldn't get hardly any NB swelling.
Anyway, I can't say that this method is going to work but I am enjoying being that beautiful c cup for at least a few hours a day. My bf likes it too!
the Brava domes are defintely more comfy for longer wear.
As for my asymmetry, I pump the left breast a lilttle then tie a rubber band on the tubing. then I pump the smaller right breast throughout the nite until it's the same sizze as the left and then air lock iwth a rubber band. this will give me even breast in teh morning.
for those not responding to NB - if you can get some cheap brava domes off of ebay and have the NB pump it's worth a try. it seems to be workign for me - as far as retained swelling. Permanent growth is another story. It will also make the NB domes easier to fill up if you ever decide to use them again or at the same time.
Also, since I had damaged breast tisesue in one breast to start with any NBE method has been difficult for me - the Brava/NB combo seems to be the only things giving me at least temporary results.
I will do this for a while before considing a surgical solution. Good luck to you all - hope you achieve your booby dreams!