I'm of the belief that weight should be distributed somewhat evenly over seat, pedals and bars. Too much weight on seat means sore bum and need for gel seat. Also unweights front wheel where most of your stopping ability and all your steering capability is too. Too much weight on hands results in sore hands and neck. A more forward position is more aerodynamic and bring glutes more into action when riding.
It's a crap shoot. What works for one does not work for another. Weight, age, previous injuries, backpack or panniers, gel seat, Brooks leather or Italian leather titanium railed racing saddle. We all need to have a bike shop gives us a stand back objective view.