Forecast Explosion for Finished Goods

Hi Gurus - Need some help with the following scenario.

We want to load forecast at our finished goods and we need MRP/ASCP explodes the forecast to it's components. Our finished goods are defined with BOM item type = Standard.

I noticed that MRP/ASCP is not exploding forecast to its components. Am I missing anything or MRP won't explode forecasts for Standard BOM's.

Eg:  BOM structure A --(B--C)

     A == Finished Goods (Forecast Control = Consume and Derive, MRP/MPP planning, End Assembly/Soft pegging)

       B== Component (Forecast Control = Consume and Derive, MRP planning, End Assembly/Soft pegging)

      C== Component (Forecast Control = Consume and Derive, MRP, End Assembly/Soft pegging)