My Drum brake fork for my old Stumpy MTB is a (used) Tange, Sloping fork crown, Blades of Chromoly ,
When I got It I was told of its 'problems', which was blade Alignment , That was wrestled back into shape ,
with some difficulty , because of the Blade strength.. been fine since 89.
I dont tend to slam the brakes on , riding on black ice.. my S-A drum brakes are on the winter studded tire Bike.
Newest SON delux tailor the output to lower drag but still are sufficient for LED lights.
the Classic & 28 retains the output all you phone chargers seek..