Indeed, that seems to be the only way Max. But it's slow.
However, I'm afraid there comes a time when a model can turn into a bit of a chore rather than a pleasure, and that time has been reached with this: I never thought I'd get there with a Mustang, but here I am. So I'm shelving this for a little while, and switching to something else for the moment. But the Comet will be back eventually.