Martic Macmillan is for the Merseyside area, so no go for us Southerners.
I'm using JoAnna in London. Nice, professional discreet service. JoAnna's very sweet, very knowledgeable and keen to experiment and share ideas. She purely does hair replacement and does a number of famous faces... You know you're getting the real deal with her.
Going for my first cut in with her when I get my first TL pieces - will let you know how I get on; so far though, so good