[double00]

OK it is nice to have the ideal height layout - one modeller will suggest the ideal height, that height is probably fine to him - however, are all modellers the same height as the proposals made by that modeller?
I would certainly suggest waist level of the modeller concerned, after all the modeller can always sit on a small height stool, (much safer than a bar stool) and enjoy an eye level view of their master piece layout.
One should remember, it is the enjoyment and how it is achieved that counts.