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	I was looking back at tech prerequisites and something struck me wrong. How come techs like Civil Eng. mkIII and Heavy Eng. - Advanced, Integrity Stabilization, require the Material utilisation metal and/or metallurgy? The 2 other material usages are just as viable as metals. Crystal makes for better combat hulls, so a crystal based aff shouldn't have any problem researching naval hulls - Advanced, or might I add, organic users like my own aff, should require metals to have integrity stabilization. Organic based has a much better integrity so why would we require metallurgy? If ships can be built, with organic compunds and crystals, how come higher mk modules derived from civil and heavy Eng. are still restricted to metal users. I might even understand Armour and Armour mkII, but then again, crystal hulls perform better than metal ones so why can't crystal armour exist? Organic and crystal tech trees should be a paralel tech tree to metals, but with slightly different approaches to the end results, not dead ends
Dan Reed
	There is nothing to stop you proposing a new line of research - there are already quite a few not on the "commonly known" list. As long as they were not a straight duplication, I see no reason why the crystalline and organic tech trees cannot expand. It is most likely only the fact that we are more familiar as players with metallic tech that the tree seems so heavily biased that way Dan