TL;DR - the hard brakes lines are working fabulously and I'm happy to have installed them.
After the brake caliper failure on the IDBDR, I evaluated the Tundra brake situation and decided to complete the conversion to a Tundra front end from a brake perspective. That meant installing hard lines to the calipers, and replacing some of the mounting hardware on the spindles. It's worked out well, and I am now a firm supporter of this method of connecting the calipers to the rest of the hydraulic brake system.
