Yes I have and had no problems doing so either. You pays your money you takes your choice. Why settle for something you're not happy with? If any airline questions my decision to change schools I will have no problem with telling them I ain't the kind of shmuck to settle for a poor situation regardless of the "pack mentality" to put up with second best.
I have found that as I've got older and matured I have grown in confidence - I tell you it wasn't an easy move but hell, I am bloody glad I did move! Things are going fantastically well now and my desire to succeed has more than doubled.
Have it!
VFE.