The selector-combinator is locked behind chemical science packs making them come rather late in the game too. With this mod the gap between circuit network and advanced combinators becomes even wider.
Please add an option to make advanced combinators earlier too. My suggestion would be red + green science per default with the option to drop the green science as well.
And if you are making options there could be an option to make them available from the start for the ultimate "earlier".
PS: Love this mod.
