Peanut's ears were never taped and popped up on their own. You do have to make sure to keep the top 1/3 shaved though, because once the hair gets too heavy they will flop back over. I didn't know this initially and his ears flopped back down (he was about 4 months old) and was informed by the groomer when I took him in that that was the problem. She shaved his ears all the way that one time to alleviate the problem, and they are right back up in the air! After that we are keeping them shaved 1/3 down with no problems.
Congrats on the pups!