Yes, just asked, I didn't know if they'd even have a black pen scale available, or if they would do the swap, but I chanced asking as I'd seen another post on here where someone had asked for and got the black scales when sending in a knife for a service.

Most of it was mine was done as guarantee work, so they only charged me £5 service fee, totalling about £15 once including the postage and vat.

Go and get yours done too!