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Thank You st0w! I have no idea wtf, when it comes to worms, so the more advice the better.
Is it possible to feed these worms differently and have castings better for veg and early flowing,
and another for later in the flowering stage?
To a degree. Worm castings certainly add nutrients to the soil, but that's not it's primary purpose. Look at it like this: The worm bin is going to innoculate your soil. Those castings coming out of your bin will be absolutely loaded with beneficial microbes. Once those microbes hit your soil, they will go to work eating whatever it is that you have chosen to put in the soil. Kelp meal, alfalfa meal, crab shell meal, neem seed meal, etc. Once they ingest those organic inputs, they will either shit them out, or be eaten by microbes further up the food chain and that is when those organic goodies become available to the plant as nutrients.
Don't get caught up with NPK growing organically. You are no longer feeding the plant. The plant works in unison with the microbes in the soil. The plant will secrete exudes (sugars) from it's roots to attract various microbes to the root zone, which bring with them specifically what the plant needs/wants during that particular phase of it's life. You can supplement with teas, fish hydrolysate, etc but for the most part you can put it on cruise control. The billions of bacteria and fungi in your containers are going to do the heavy lifting for you.
the weed nerd lil somthin about supersoil 
