So I have tried this twice, both made with Monkey 47 gin and Dolin Vermouth. The first time I followed Dick Bradsell's version as I had just read his article posted on this site. While strictly speaking not a "true" Franklin" it uses the same ratios but lemon as the garnish. Tonight I used the above recipe, and interesting for me, although my preferred Dry Martini is a 10:1 ratio with lemon garnish, between these two 15:5 versions, I preferred the above recipe with the olives and orange bitters. Go figure.
The Martini has spawned the dumbest array of technique variations. But I fall for trying every one of them. Y'all just like chilled, diluted gin. Cracks me up. Posturing science out of sousedness.