I'm an SP in Surrey, and I happily accept email transfers from happy clients to purchase goodies for myself, but I would never request that a client send one had I never seen that person before. Why? Simple...as someone pointed out, it is possible to cancel the transfer from the sender's end IF the transfer has not yet been deposited. So if all I get is the confirmation that it's sent, and I say "Come on over, I got your transfer" without taking the extra step of accepting the deposit immediately, that client could cancel the transfer before I could get it into my account. Once I deposit the funds, it cannot be clawed back. So here's a way of countering that...If a girl asks for an email transfer, tell her you'll be happy to do that via online banking ONCE YOU ARRIVE AT HER INCALL, so that you can witness her accepting the funds before the fun begins.
If she's legit, she might be willing to do so. If she's a scammer, 'nuff said!