On Feb 27, 2018, at 1:43 PM, W. Hopper <xxxxxx@pobox.com> wrote:

In the LBBs, there was no mention of attractive gravity control.  Repulsive gravity control was all that was mentioned. Attractive gravity control was first mentioned in MT, IIRC.

Thing is, inertial damping and artificial gravity, which are also canon in the LBB’s are essentially just that: attractive gravity control.