The congregation doesn’t need to be impressed with your vocal chops. They need to worship.
So when the worship leader jumps to that high countermelody on the big part of the song, what do you (a typical person in the congregation with no formal training) do?
You stop singing.
How do I know this? I stopped singing.
Read Jon’s whole story here. It’s a great reminder that vocal acrobatics don’t serve the congregation very well.