I've got a couple of sets of the dual/dual Record brakes on bikes. When braking during the winter, with the risk of frosty roads, I'm preferentially using the rear brake in non-critical just slowing-down situations, as if the rear wheel lets loose, less risk to life and limb.
I've got another Record dual-pivot brake that I'm converting to rear use, with a swap of the main mounting bolt. Takes about 20 minutes including cleaning and fine-tuning. I normally don't spend time on servicing rim brakes, but with the precision parts, titanium giblets, and 2 rows of teeny tiny thrust bearings, these Record brakes are truly special, and worth keeping alive.