So I have a 2012 wrx which I drive daily. I have a few parts on it, but all bolt on and properly tuned. I baby the car usually but every now and then I have to let her stretch her legs. A few weeks ago I was sunday driving with a buddy of mine and we got a little too excited. I shifted from 1st to 2nd and heard a clunk and I started to loose RPM on 2nd gear while I still had my foot on the gas. I released the gas pedal, put my foot back on it, and then I started to pick up rpm. ...I brought it to the dealer a few days later and they told me it was a worn tranny mount and they would replace it. I got the car a few days ago with the new mount, it feels alot smoother but the problem shifting from 1st to 2nd is still there. I shift from 1st to 2nd on mid to high rpm and I loose rpm, I let go of gas then get back on it, and I regain speed...any ideas to what's happening?