I've bought from duck several times (1B-15B) and every transaction always goes very smoothly. He always provides a top notch service unlike no other and tends to have bils in stock ready to sell.
Would highly recommend doing business with duck if you're looking for someone friendly/respectful who can get the job done in a matter of minutes.
Before I could even finish writing this review he was ready to deliver my gp ^.^ just goes to show how fast the process really is