I'm going to be pretty central as is the nature of a day visit, so I'm guessing covent garden ways, although I'll have access to the tube so wherever that isn't too far out really! I should probably add that I'm a lefty too, so that makes basses a little more difficult!
I went a few weeks ago and was in Wunjos, can fully attest to them being great guys, gave me some very good advice (advice that even could potentially have cost them a sale!)