None of the above, sir!
I call it the "not lower you car to the point of not enjoying driving" technique, lol. It's about an inch drop (maybe a slight less than an inch) and stiff spring and damper setup will keep the suspension from compressing to the point that the tires will hit the lip.
I will actually be rolling the inner lip soon and will be trying for a 1.5 inch drop (most I will go, no lower) so lower my center of gravity.
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