Lu,
Hurrah! That's the point I've been trying to get across for months! As an aside, if you think about it, a delta three rig will also apply an out of phase restoring force.
I'll try and put together a sketch of the Spider system.
I would add that whoever told you that the Lynx ASE actively compensates for phase lag was in error, it is a simple 2 channel ASE with Gyro, compass, radalt/baralt, control position and jack position inputs to the computer.
GA
[This message has been edited by Grey Area (edited 12 March 2001).]