Recipe Changes:
Some recipes could have some hayo-ist improvements to make a little more sense and give gold cables a little more use rather than jump to Iron/Glass:
MFE and MV Transformer: Uses 2xInsulated Gold Cables instead of Insulated Copper cables.
HV Transformer: 3xInsulated Iron cables instead of Insulated Copper Cables.
Teleporter: Uses 2x Gold or 3x Iron Insulated Cables instead of Copper.
Electrolizer: 2x Gold Insulated Cables instead of Copper.
I was also going to suggest the addition of Gold Plated Circuits (Uses Gold Cables instead of copper, albeit less cables maybe 2 or 4 + 1 circuit), to make mid game recipes a little pricier and to avoid people jumping to the late game so quickly, but i noticed that properly placing these circuits would be too much of a bother.