gsb - it's not an exact science. Order two at a time and when they come in and are good immediately send one back to have it cloned 3 times. Tell them to keep the model at the factory until all the new ones are ready and the order is complete and send back the new ones and the model all in one shot. John or whoever should be checking that the model and the new ones are pretty close to carbon copies.

If the factory receives the model and writes down the specs and sends it back and then makes the pieces you are in for a suprise. They need to have that model in front of them the whole time. Once they clone it correctly keep one of the new pieces ready to be the next model and get a rotation going.

JMHO