Question on DWF Underlay

Now then,

I'm working on a project at the moment where the client has sent through a load of DWG files, to save me printing them all off and then working by reading the dimensions, I've saved them as DWFs to use as underlays making the drafting of the house types much faster .

Though every time I insert a DWF underlay the lines are really 'fat' and it can make finding the correct snap point rather frustrating .

so my query is:

Is there a way to get the lines on a DWF to show the same as they would on a DWG, i.e no lineweight?

Cheers in advance.

Hmm, I don't have a good answer. How about plotting the DWF's without lineweights?