The breadboard is great for trying out designs: components can be easily swapped and mistakes undone without burning the fingers. The socket is like a tiny version of the breadboard. The chips can be damaged by the excess heat of sluggish soldering, and are very difficult to de-solder if they have to be removed. If one uses a circuit board that mimics a breadboard closely (like the Datek board), it will have at least one horizontal bus at the top and bottom of the board that one can use just like on the breadboard. A circuit board that mirrors the breadboard exactly makes the transfer process much easier. Some electronic components—capacitors in particular—have sufficiently wide tolerances that two parts with identical markings can deviate in value enough that the breadboarded and soldered versions of the circuit could behave slightly differently.