I think it depends on the strain.From my research many people believe that white widow is probe to nute burn. and doesn't need much nutes.

Veg 1-1-1 = 40-40-40

Flower .25-1-2 = 10-40-80

Finish 0-1-2 = 0-40-80.

I am not doubting the above ratios but i taught that For vegging you need to grab something high in nitrogen and lower in phosphorous.

And 0-10-10 for flowering.

I wont be making my own feed just buying it