A well aimed blow with a big hammer to the hinges' mounting points certainly will enhance the shut lines [:p]
If renovating the doors use new skins, this will give you the opportunity to get a perfect alignment.
Fit the skin to the frame but don't hammer down the outer edge completely.
Mount the door with the skin loosely fitted so you can move it around over the frame a bit to get decent alignment.
This will also enable you to twist the door a little if necessary.
Small corrections to the skin can be carried out with a hammer and dolly before hammering down the edges of the skin.
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<font color="blue"><i>1976 TR7 FHC (currently being restored ...)
1980 TR7 DHC (my first car, a.k.a. Kermette)
1981 TR7 FHC (Sprint engined a.k.a. 't Kreng
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