What your gonna want for the veg cycle is high in N like 2guysupnorth said, but not much else, though you should have some P and K too. The MG I would think is the better of the 2 for veg, but its still not what you want.
The shults would be good in the flowering cycle I would think.
Did you get them at home depot, or lowes? I was just looking through thier gardening centers today while I was getting materials for work, and they had a terrible fertilizer selection IMO or at least the ones around here did, I know others have been satisfied with thier products.