All issues of etiquette aside, if you want to show pictures of the bottom of a block, demonstrating how flat it is, show a reflection of graph paper.
There have been at least a few blocks reviewed over the years that, although mirror smooth on the bottom, were very un-flat - which should be shown as some of the graph lines being un-straight.
Not that having what appear to be straight lines prove adequate flatness, but it at least shows some flatness.
In the same vein - why brasso? To make 'em shine - or does it actually improve heat transfer? I had thought that it would actually hurt but am prepared to be convinced otherwise...
|