I personally use a modified version of the Lucas Formula which only uses Cal-Mag, FloraMicro, and FloraBloom. The theory behind it is the Cal-Mag and FloraMicro actually have enough nitrogen for the plant in veg so the FloraGro isn't needed. Here's the schedule I use:
Week 1: Only PH balanced water.
Week 2: 2ml of Cal-Mag, 2ml Of FloraMicro, 4ml of FloraBloom
Week 3-5: 3ml of Cal-Mag, 3ml of FloraMicro, 6ml FloraBloom
Week 6 until Flush: 4ml Cal-Mag, 4ml Of FloraMicro, 8ml of FloraBloom
I normally feed every other watering also.