On paper, four hands sounds more promising than two. When you're booking what's attached to four, remember that you may be putting twice the amount of your own time and effort in, just getting all hands to show up in the same room. I learned early that it's not for me. If you're able to discern the differences in touch, technique and knowledge between two masseurs hired weeks apart, you'll be amazed at how much that discernment will be calling all the plays, in your head, through the entire session!