This is Goldie, my 17 week-old RIR. I'm wondering if the size and color of her comb and waddles can tell me if she's getting close to laying... I'm due to buy another bag of feed this week and will get more developer if she's still a month or more off, but I'll start on layer if she's within a few weeks. Does that sound reasonable? Any guesses as to how many more weeks she has before I see that first precious egg?