Timers are a must, even for a very highly motivated mofo. Primary difference between the Bloom and veg fertilizers is the amount of nitrogen to phosphorous and potash. Vegetative fertilizers have more Nitrogen. A plant food with a more balanced NPK is [generally] fine for veg, as well.
The way plant food is labeled is governed by laws (P and K as listed as the oxide equivalents, for instance). But if you are really interested in that you could search Google.