I don't know how many UE11Pro owners are in the same boat, my original cables have oxidized for months but I have been holding off on replacements waiting for the portable V3 cable to come out. Is there a rough timeframe for it's release?

Any update on the UE11Pro cable yet, have been waiting a long time for this.

Apart for Kingsound Audio, I would recommend going to a store name AV2000 which is also in Mongkok. They also specialise in headphones only. I found that they were cheaper for certain headphones. Tak Fat Basement Shopping Arcade MTR Exit E2, cross street to Nelson St. Mongkok, Kowloon

If you already got the 6i, why not save the money for an upgrade later down the line. Then you can consider the UM2 vs Super.fi 5pro vs ER-4P vs E4C etc....