Great - it's finally come to this. He wants the answers from a " QUALIFIED SOURCE"
So an answer from the 14 year old asking in R&N about whether or not an A330 being quieter than an A320 as it roars above his cubby house is using FLEX Thrust wouldn't be good enough for you then Mr " I want a qualified source on PPRuNe "
This party is over.
Qualified sources indeed!!!