Several people were kind enough to respond with some clever ideas, but I have to give special mention to Martin Weenick. His solution? A short length of pipe-insulation (for half-inch pipe) from a hardware store! It weighs nothing, compresses easily when the case-lid closes and, best of all, cost only .25c!
Of course, most of you don't have a problem with 'verticals' but, for the afflicted few with short legs who also play Emmons, this is a great idea!
Thanks, Martin!
(How about Ron Jr. sending out a six-inch length of it with every guitar?
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Roger Rettig (NTSGA #147): Emmons LGIII(8+8), Fender Stringmaster (0+0) and a Zumsteel D10 on order!!!