Canti cantilever brakes at a price point

The Tektro brakes you show here don't use a standard cantilever pad, they are using a v brake pad.
The pad you show is a cantilever pad but a v brake version of it should be available.

Thanks, that's a perfect example of why I get confused. So assuming that I go for the SwissStops instead now, do I want the threaded or plain stud blocks for the Tektro CR720s?

For bonus confusion, if I'm swapping to cantis do I need to buy a new headset, one with a cable hanger? Will the canti set-up work without one?