In the old mans war books they cover that by having the old and new bodies staring at each other while they move the consciousness. So one minute you're starin

In the old mans war books they cover that by having the old and new bodies staring at each other while they move the consciousness. So one minute you're staring at a new body then you're staring at both then gradually the vision of the new body fades out and you're left staring at your old body. I think something similar is the only way you're going to get people to want to do this. Though whether or not that is possible is way beyond me.