OK, I've gone a few more round with the bike and I've now installed the Spyre TRP brakes. Here's what I can report:

1. The TRP is clearly the same fundamental approach – it's a mechanical disk brake for road bikes – but it is also obviously a much better improvement on the overall design. The fact that both brake pads move DOES make them easier to set up. But the instructions say to align the calipers buy pulling on the brakes, and this just doesn't work for me. But unlike the BB7's I have been able to get these setup with NO rub and the ability to stop the bike!

2. I'd still like to have a much shorter brake pull than I have. I'm not fully stopping the rotor in the caliper until the brake lever is less than an inch from the handlebars. If I move the pads closer to shorten this throw, I get pad rub.

3. I have two theories about what I might be able to do to get firmer lever feel (other than just needing the brakes to bed in):

A – I am running jagwire ripcord compressionless housing with the jagwire cable. Spyre says to run wound cable for the handlebars and then connect that cable to compressionless. I haven't seen this recommending/required anywhere else, and I don't know what to make of it. Maybe this is a problem?

B – I filed down the heads on the Jagwire brake cable ends to get them to fit into my chorus shifters. But I notice that when I squeeze the brake lever I can still make the head of the cable (as it fits into that metal piece inside the lever) rock back and forth. On my campy road bike the head is seated down into that metal piece and there's no movement. I wonder if this slack is translating into my lack of tight/short lever throw?

Any thoughts or wisdom would again be much appreciated. I can also add pics, if that helps...