Essie Nothing Else Metals Swatches

I really like this color.  Its a metallic lavendar.  My only issue I noticed a few bubbles formed.  I am not sure why either.  I use Nailtiques formula 2 for my base coat.  I haven't tried the other Essie Mirror Metallics yet.  I was able to get them all but Essie Penny Talk.  I still really like this just have to figure out why I got bubbles.  The formula is on the thicker side and I had to be careful to not go over any wet areas to avoid making it streaky.  I need to play more with these.  Any idea?  Did you have any issues with these?  Which is your fav.  I also heard people had great results using these for stamping.  Maybe some stamping is in order to hide the bubbles today!