The problem with this is that being destroyed and recreated only creates a copy of you.

Oh sure it's you, and would not know it's a reproduction, would know everything you do and feel just the way you do, but it would have it's own consciousness a copy of it.

To ovoid this this mess. 

The process has to work sub-dimensionally where your not really being destroyed or torn apart that you are only changing energy states and quantum positioning, So what happens is you're not really torn apart, or destroyed, you change energy states and that energy is repositioned and the energy state reverses to normal when you arrive, it only appears like you were dematerialized because you are in another energy state that is being repositioned dimensionally so to the observer you appeared to have been broken down and put back together when you were simply transformed to a different energy state that allows the reposition, I think this is how it works and seems to be the only way it could without creating duplicates,