I would say that it feels more like normal bias after adjustment. Yes the rear is extra sensitive at low speeds.
No seals or hoses replaced, front hoses look good on outside, haven't looked at rear.
Is it possible hose restriction would block fluid pressure to front? Then both hoses would be bad the same amount, braking balance L/R is good, NO pull whatsoever.
As far as not letting pressure bleed from rear, I can pull either drum without backing off adjustment.
Driven on same steep drive for 13yrs. If I have one of the boats on the back, it'll push rear around.
If we don't come up with something, or the HCU doesn't fix it, I'll TEE the front lines and do away with AWALB.
But it'd be nice to fix it, my wife won't drive it.