Sooo.... excited 7 year old unpacked the miniPOV kit prior to designated assembly hour and location. Result: missing 4.7K resistors and Zeners. I managed to scrounge up some 4.7 K resistors (that are 10% tolerance, so they meter out as 5.0K resistors), and need to pick up the zeners. I see Radio Shack sells 5.1V Zeners. Will these work, or do I really need the 5.6V zeners. Also, will the 300 ohm difference in the resistors make a difference?