Thanks for your reply guys.
It appears that Profile Design have made another move to simpify this dilemma.
They seem to advocate the Dromo/Dromo Pro handlebars (http://www.profile-design.com/produc...ars/dromo-pro/) the Aero Wing kit (http://www.profile-design.com/produc...wing-clip-kit/).

It seems to solve the issue of having to purchase a whole new stem, instead, mounting the Wing Kit directly onto the flat drop bars. Although I haven't seen this product in person, I would question the compatibility of the Wing Kit with other flat road bars of different widths seeing as though the clamp is fixed to one size only.