I was tweaking your ICW 2.2.3 mod (excellent work btw!) to my liking for my own use. In doing so, I noticed that you use TechLevel=GreaterThan(n) in several later squadron spawning entries. When I tried that for my own entries with the ISD 2 (as an example), it really slowed the engine down to a crawl during runtime. I don't know if that is helpful troubleshooting information or perhaps you already know, but I figured since I stumbled on it that I'd mention it here. Best of luck as you perfect this great mod!