Dave, you're right about the clear parts on the He177. It doesn't help that some of the sprue attachment points are on the clear surface and not the frame section of the parts.
Still I spent last night removing the clear parts from the srue and cleaning them up, before dunking them in Future. Checked them this morning before coming into work, and they look a lot clearer. Will probably still require a polish and maybe a second dunk.
Jay, glad to see I'm not the only one who can't see the point of adding detail where it won't be visible.
Progress Update
As above, cleaned up the clear bits (There are quite a few of them!) and Futured.
Karl