Now wen you say let it stabilize for two weeks are you reffering to clones or seeds?SOGs are usually done from clones of the mother.
If the mother was sexually mature, so are her clones.
So, in a typical SOG, take a Bunch 'O Clones (nice Irish lass, she be). Once rooted toss them right into flowering.
Now with soil, I dunno. I might let them veg/stabilize for 2 weeks before tossing into flowering.