We don't quantify "brake imbalance" here in America that I know of. But we all know what it feels like to have brakes pull to one side or another, so I assume that's your problem? It looks like your breaks would be pulling to the left?
Not sure how your test measures the imbalance, but it seems you've replaced everything except the front brake hoses, which in these trucks have been reported to "break down" with time. Perhaps one of them is ballooning slightly or collapsed in its inner layers. I would change them. Heck, you've changed everything else. Also, an air bubble would be the most likely cause, so bleed the brakes again.
Since you've changed the master cylinder, it's possible that the anti-lock brake module must be bled. This is done using the proper diagnostic computer which vibrates the antilock valves.
Depending on how this test is done, a worn shock also causes a truck to pull toward the warn shock. I would also check the brake pad mounting, check that the rotors are seating properly,not on a rusty hub, that the calipers and pads slide freely not hanging up on any ridges, and that your new calipers are of good quality.
Lastly, a worn wheel bearing can cause brake pull. Check them for looseness and play.
What I've said is all probably obvious but I hope it's helpful. Good luck.
Good to hear from my fatherland.
