No, the PC will only be the same if you call the SLSB from the SFSB.
I did observe some queer behavior as I progressed and your reply definately saved me some time.
It would be of great help to get clarifications for the following as well.
Whether the underlying PCs are the same in the following scenarios :
One SFSB with extended PC invoking another SFSB with extended PC ?
with non-extended PC ?
One SLSB invoking another SLSB.