Shiv,
Very nice job...hopefully that will clear up some issues here.
One thing that i didn't see mentioned that some people may be confused on(including some of these forced-induction kit companies)...
a rising rate FPR is useless with the stock Subaru RS fuel pump at ANY significant boost levels. It simply will not produce enough fuel pressure.
BTW we can supply motorsport-grade intank fuel pumps capable of upwards of 140psi. They are custom made to order by our supplier and are not cheap. Just another option.