There are two schools of thought:
Rod Jenkins teaches a "dynamic" release, where there is enough backward pulling force that the string hand recoils backwards after the release and ends up somewhere in the vicinity of his neck.
Rick Welch teaches a "dead" release, where there is only enough backwards pulling force to offset the force of the string pulling forward, and the string hand stays more or less put after the release.
Both are champion shooters, and there are many other good shooters who adopt one style or the other. Use what works best for you, with one caveat: whenever you try something new, it will not work as well as it should until you master it. Both release styles are worth the effort to leatn them, so you can make an intelligent choice.