Removing the tweak screws was always the last, last, last resort, even on a very loose track.
If a track was almost undrivable with a conventional L2, I would:
1) Try softer rear tires
2) As mentioned above, remove the dampner disks, start with the top, then the bottom
3) Dramatically soften the center shock, i.e. go from the silver to the black spring and drop the oil wt.
4) Stiffen the front end - inducing a little push is a very effective way to get balance back.
5) Raise the front ride height and lower the rear.
6) Remove tweak screws and hope for the best.