Nice, I did not recognize this topic when I finally designed my
4-wire short:
I thought about modifying this for the larger space 4-wire terminals (HP 3457A, 3458A, ...), but decided to not do this simple modification, because a simple PCB screwed down should give lower emf and lowers the price.
Is there already a PCB-design for this?
My design idea (easy to modify for 19x19mm):