I have to agree here. I flat out refuse to use recruiters in London because my experience with them was really bad. I once was put through an interview process through a recruiter. I did all interviews with this company and they were happy with me. After each interview the recruiter called me and asked me what kind of questions I was getting. It turns out he was betting on another horse to succeed as I found out later. Another guy was on the race for the same job and the recruiter was feeding him all the questions before he got to the interview. He must have pitched him really hard for him to get the job.

Be very wary of those practice. Recruiters are not your friend.