The corner locations can be used for jackstand placement, but not as a main jacking point (unless you are stuck with an emergency and need to use the tiny nissan jack to change a tire).
I always lift from the front or from the rear (ie. lifting two wheels off the ground together) . The rear jack point is under the diff, the front is under a main crossmember under the engine.
Z-Jay (formerly TTZJay) 93 300ZX TT - Stage IV 01 Sentra SE - daily driver