Nasser's back was not weak.
it was wide , thick and developed.- you can see that in the RLS with Dorian
where it was not quite as good as Dorian was in dryness and seperation. But that is the only pose where Dorian jsut edges Nasser- ONE pose, the BDB, all others Nasser easily over DOrian.
Nasser did not have a weak back.
when you talk of weak backs you should talk of Dillet, Matarazzo, Porter Cottrell