When your're making the argument that the alert, or lack thereof, affected your bidding, you greatly damage your case by not asking before passing. Make your bid as if there were no alerts. If it turns out there was a missed alert, and you suffered damage, this is much easier to argue when you *actually make the bid*, instead of going for what reeks, frankly, of a double shot (not to mention the UI to partner) by declaring what you would have bid....after seeing dummy.