In general, as golfers age they have less and less forward shaft lean with hybrids and irons/wedges hence add loft and hit more "fat" shots which give a general fade and lose distance. That penetrating lower trajectory turns into a ballooning high trajectory shot. Venetos yield a draw thru set up. Jim posted this last week.
Tom Saguto is kinda S&T based but I find his technique not hard to replicate and for me not hard on our senior bodies.
Both swings are forward weight, no sway, forward shaft lean, straighter top hand arm for consistent impact all of this promotes hitting lower penetrating shots with powerful impact. As your club head speed dwindles all of these factors are better to maintain than lose. What I think what happens is as we can't develop good club head speed our positions get less and less good impact. We chalk it up to age which partially it is but also have lost good impact position.