Question about the Roman \'wedge formation\'

[John1]

off topic but here goes, dna entry level best is still probably ftdna. I say this having tried several other (Nat Geo and Oxford Ancestors) greatest strength is their data base of links. You get a list of your nearest matches many with emails so you can easily connect and take your project as far as you want;
www.familytreedna.com

good luck but be warned it can take you to some unexpected places, like RAT for example.