Ive not used them myself for a remap, but I trust Nick to provide a good service as he is a very clever and honest kind of chap, who actually takes pride in what he does, something that I certainly wouldnt say about at least one of the people on your list, lol

The system he uses is the genius remapper, which is developed by Stu who runs passionford, you'll have seen him in fastford as their resident engine expert if you buy the mag, so its essentially one of Stu's maps, installed and checked by Nick.