@K_t_X8@Turbinetraveler Spoilers do that more, not thrust-reversers which reduce speed. Both reduce lift, but spoilers kill the lift instantly by creating turbulence in the low-pressure area above the wing.
@blind_via Gold-plated silver for the best [room temperature] conductor. Silver tarnishes and doesn't make connections as well. This is assuming it won't have physical stress or vibrations to deal with, because then finely-stranded tin-plated copper may be a better option.
@i2cjak That sounds like a layout problem. There can also be uses like in inductors or heaters or distributed element circuits where the shape of the traces matter and some other components may need to connect to one side of it or the other side, analog versus digital ground, et cetera.