Wire size, at least in the case of 100 count string, is irrelevant. The drop is due to loss at each pixel from the resistors. In the 12V strings we are actually wasting more power than we are using for the LED itself, that's why you see the 5V strings. Now, the 12V gives us something more people are familiar working with and allows for longer runs than the 5V with less wasted power. It's a trade off. The strings are being made now with 20 gauge high strand, which is supposed to compare to an 18 gauge. It was important to get the UV rated wire and the UV rated 18 gauge is too large to fit the solder pads on the PCB and the molds would have to be again modified to accept it. In the overall design, we decided it was easier to limit them to 50 count and 100 count with injection at both ends. The V2 strings will most likely be 85 count strings. There is also an easier injection solution being developed that should make injection along the line much simpler and more plug and play.