I've converted to the Mr Metal Colour Stainless as well, and use Chamelion most of the time, lighter line for the control wires.
Both products get my vote! On the DH.2 George, I'd recommend a stretch type of line for the lattice section or it will turn into a warping nightmare! EZ Line or Modelkasten (the latter my preference) is the ticket, and still colours well with the stainless.
Cheers,
Lance