Bob H wrote:

> Something I couldn't stop thinking about is reflection 'exponent' and 
> whether or not that might be plausible to use for the metal if you hadn't 
> already done so.

Wow, that looks like just the thing I was looking for!  Must try it! 
I'd completely forgot about it though I now remember reading about it in 
the manual, in the past.  Thing is, with this model it is too much work 
to edit the mesh so a material with ior can be used.  At least too much 
at the moment.  I *had* been trying to remember if "fresnel" took an 
exponent value, (while sitting in a cafe,... not at my computer :P ). 
Now I look at the docs I see that I might try the conserve_energy 
keyword too.

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