Ok, going on memory here. IIRC you posted some high NPK numbers, but with no N. What are they getting that provides them with some N? IMO you don't actually need those super-high NPK numbers.

@ShroomKing -- the NPK are percentages. So his mix is 0% N, 50% P and 30% K. Packs a wallop!

What are you giving that provides any of the major secondary nutrients, such as Mg, Ca and S?