I always cannot understand why some people cannot achieve victories even within T200. I'm not blaming that people, but I'll be very happy if I can help them improve. Today I saw a thread posting their thoughts of yield value, which makes me think that maybe this being the point. I'd like to share the yield value system I've always been using. 1Science=1Culture=2Prod=3Gold/Faith There may be many debates on this, and yes, yield value shall be adjusted due to a certain situation. But I believe those who adopt this system will at least suffer some sorts of improvement. BTW, if you can already fly your rocket within T200, then this may not be very helpful, since yield values at SV actually vary a lot from time to time.