1990 740GL with 205,000 miles (B230 non-turbo)

Hi all,
I just had all 8 bushings replaced with iPd poly's, new TME springs, strut mounts, struts, shocks, innner & outer tie rods, ball joints, fresh alignment, and an iPd Pan Rod installed.
What I noticed before this overhaul was the car wanting to steer in the opposite direction during a high speed turn (on a clover-leaf highway turn). It almost feels like a pulsating force in the opposite direction of the turn. Any ideas what this might be? The only thing that was not replaced was the sway bar bushings and the radius arm bushings. They appear in serviceable shape (no rotting or compression of the bushings). My next installation will be iPd sway bars, but before I spend the $$$.$$ and time, I want to resolve the steering problem. It's not as bad as it used to be (the car felt very sloppy and pulled harder in the opposite direction).

Thanks,
Vinnie