@johnk I have tried the Duelund tin plated (same as tweeter and mid driver wire) as speaker wire, bare wire connections, prefer my Cardas with connectors.
If I went full bore with this and your other post, I'd go with Cardas sans connectors and ditch binding posts at both amps and crossover.
And then we have issue of power cable connectors, ditching those requires inline fuse holder in components and lots of work to modify my power conditioner. One can get really crazy with this!