Yea i hear ya. Alot of people go straight to big pots. To answer your original question... if you see roots all along the bottom of your cups, its time to transplant. I didnt realize how much work itd be when i started either. Ive only been growing a year and i still have so much to learn. I spend pretty much all my spare time on this site and a couple others trying to better each grow. Sometimes i do sometimes i dont. Its all about experimenting and finding out what works best for you.