All the discussion of late got me wondering:
Can I create Custom Races to play against, and can they all have the same tech tree? It probably came up before, but I'm too lazy to go look for it.
Well, there's one way to find out, and I'll post the results here as a public service. Here's what I am going to try:
Me: Custom Race (CR), Super Diplomat, Torian Tree
Them: CRs with the Drengin tree.
Object: To see if if works, and to get culture-flip planets that only have the structures that I want them to have (healing pools, anti-matter plant, devil's forge, intensive farm).