I did my test with FTDNA and am told by those better informed than myself that it is better to go with them because that is their area of expertise, as opposed to companies that specialise in family history and do DNA testing as a sideline.
Don Lock runs the Romnichal DNA project through FTDNA and anyone who tests with them can join Don's project.
Those who's results land them in the Y Haplo H group (many Gypsy/Travellers do), can also join this project that has many asian participants .
You can also join the Surname project that relates to your name, regardless of racial origin.
I would be fascinated to see if someone from a Border family is in the H category or one of the Northern European groups.
Already campbells and Baileys of Scottish Gypsy origin have found out that they belong to the Asian haplotype.