Hmm, just wondering about that -
If your vehicle has a standard Panhard rod, as the original springs sagged theoretically the axle should have moved out of kilter slightly. When you fitted new standard springs and effectively ‘lifted’ it back to original ride height I would have thought that the axle should have Re-centralised
Similarly, the tracking angles shouldn’t be affected unless you have interfered with the steering ball joints, the front axle just moves out of line in relation to the rear (which I suspect would show up on a laser track check as well)..
And that of course assumes that your rear axle isn’t floating out of line!