But with help from the OpenEVSE community, I may have finally cracked it.
The downside is that they don't fit very well in the Cooper Bussmann power distribution block I've been using.
There is the Cooper Bussmann 16220-2 instead of the 11725-2. That has four screw terminals on the load side instead of 4 QD terminals. But it costs $55 instead of $17.
What to do?