Hi from London!

Hello everyone been reading on here for a week now unbeleivable info available great site. My first experience of reps was a visit to the MBK centre back in Jan 2010 where I bought ten reps mainly Rolex and Breitling from a guy on the third floor from what ive read since probably cheap Chinese reps aimed at the tourist trade ie me. The watches all still work and to my noob untrained eye look the part. Anyway he gave me his card and ive since been in contact with him about sending some more watches we've come to an agreement about price and ive asked him to send me 4 watches. I have some questions if anyone could answer would be much appreciated:
Because im ordering 4 watches does this increase the chances of customs seizing the watches?
Which is the best method of sending Standard registered airmail/EMS and does anyone know roughly the cost respectively?
Is it better to pay money directly into his bank account which I have the details or Western Union?
Sorry for all the questions and maybe ive posted in the wrong section
Any advice be most appreciated:undecided:

No issues with custom to the UK. Got 20 odd watches over the years. WU is a rip-off. Try to go with a dealer accepting paypal or transfer to UK account.