Keep this in mind as well. On my megatree I run 4 colors with 16 strings each, all LEDS. In theory i can replace one string of each color with just a single smart string and still get all my color choices using string mode. However, as my wife has pointed out the density of lights would change dramatically even though I have even more color choices. I often have more than one color lit at any given time and she likes it when all 64 strings are lit. While I love what RJ has shown he can do with his megatree I feel that I would need at least 32 strings to maintain my light density in the mega tree. Not saying that either choice is bad, but just more to think about. Personally I am thinking that, at least for now, I would use SS on my roof and gutter lines where light density is less important to me and the patterns and colors that I can generate for the roof and gutter would give me lots of new effects to play with without the expense of a lot of SS for my tree.