I have bought the cables from Fibermart for one years. They are cheap and easy to use. The cables I bought from other suppliers before often have big insertion loss after using for a period of time. Fibermart uses zirconia fiber so the insertion loss is well-controlled. What's more, they put the sticker with meter number on the package so I could identify the cables easily when I received them. Hope Fibermart can open warehouse in UK soon.