Old drums, new hardware. I grew up using pliers to get that stuff tight enough or if worse came to worse, getting leverage on a wing nut with two drum sticks pinched together between clenched fists. My shoulders hurt from reaching for a tom on a rail consolette I could not get high enough and a floor tom on legs couldn't go high enough for where I naturally wanted it. That bass drum mounted cymbal arm would invariably fall over.
Today I've got everything on Pearl arms with the Pearl system no holes mounts. I use stands for a few drums or a racks for a lot of drums. I relive the glory days with the sound of the drums, not the flimsiness of the hardware.
That said, the Swivo-stuff looks very cool and seems like the very best in its time period. I started with a '65 Gretsch kit and the hardware was lame compared to that.
Best,
Gary
Dix HIlls, NY