The Limited Atonement of Christ

Questions around who the forgiveness is for often come about, especially when it comes to a sort of Calvinistic interpretation of who is the elect. I've got two related questions here on what sometimes technically called limited atonement. What do you think? Who's right? Who's wrong? John in Adelaide, Australia has a similar question. But this comes with a sort of pastoral dimension says, I'm losing my evangelistic zeal due to my embrace of definite atonement.