Any reason Travel Agents wouldn't solve the cable pull issue? [edit] I see it says linear pull brakes only. Maybe this won't work, although I'm not sure why.
https://northwestbicycle.com/product...iABEgL-h_D_BwE
I can see your point about the levers, but I tend to think I have some alignment issues as well. I think my approach will be as follows:
1. True and clean the rotors.
2. Try the caliper alignment procedure again.
3. If performance is still sub-par, add travel agents. (or not; see above)
4. If still sub-par, replace rotors.