I installed a package on 10 frames of drawn comb about 12 days ago. When I checked them on Monday the queen was laying, it's been pretty warm here so it looks like thing are moving along pretty well.
Anyway, when should I put the second deep on? The 7/10 rule doesn't really apply since they're already working on drawn comb.
My gut says let the first round of brood hatch then slap it on with the reenforced numbers.