i dont have to rack my xdm its always got a loaded chamber.
a big drawback with revolvers is that very long trigger pull while half asleep and under stress... if you avoid that by manual cocking its much more distinctive than racking a slide.
if the main concern is quiet while maintaining ease of use then xd/m, m&p, glock are a better choice over a revolver. self defense guns should never be without a round in the chamber or 6 in the cylinder. there hasnt been a revolver made since the 70's that didnt have a disconect that i can think of.
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
"I crapped my pants to avoid the draft!!" -Ted Nugent