Along with the excitement of Super Structures with the new world height, we have tested the Windmill breakage at height 255.
10+ hours at 6-7eu/t and our test mill is going strong. Has Windmill break chance been disabled?
They probably traded break chance with cable tolerance... at 6-7 EU/t I'd imagine that your Tin wires start melting, and that you'd need either copper or higher to withhold that voltage...