I like a general 3-2-1 for veg, you need higher nitrogen and a little phosphorus for root development, i font believe you need much potassium yet.
1-2-3 for flowering, you need nitrogen still but not ass much(preferably cut it out completely the last half of flowering) You need higher phosphorus for blooming, but nothing crazy like a lot of people think, and i believe the more you are watering and feeding the more potassium you will need.