IOM reg may not be for you, but have you ever stopped to wonder just why it is so popular?
Obviously tax reasons, but its not particularly well regulated for commercial ops.....they don't "allow" it therefore have no provision to control it...legal or illegal.
I'm pretty sure the FR operation on the LJ is fine, but there are plenty of M reg aeroplanes doing dodgy charters. I hear Special Branch are now being drafted in by the CAA as the problem is so overwhelming. The UK CAA are now having to get involved as the manx auth don't have the infrastructure or resources to deal with it.