What do you mean by "user experience"? Your private banking experience is completely not applicable in your first few years of practice. If u can make partner (in a private wealth practice area), your private banking experience and contacts will be useful. However are u willing and able to take a significant paycut, work like a dog and face possible layoffs before then? The legal profession is not as attractive as it used to be, the excess of fresh grads has made the market very competitive. I wouldn't do it if I were you!