yeah ammar with due respect.. the high -fi boox u mentioned are absolutely fine.. i ve gone through each one of em...
and after going through em i realized that they r fit for some Phd aspirant ... for a css one john thorne.. vd mahajan and shekikh qayyum work best cuz they let u relax and give u point to point relief... plus enuff knowledge that u can touch 140s.....
ths ma opinion... and an xpereince too1
i studied so hard for it .i do not know ma marks but yes i know atleast 7 ppl who had jus studied form sheikh qayyum and scored 130+
so whatever one may read..history is history. it wont change but the way the narrator xplainz changes...

May Alah be our companion always!
Regards
Amna!