5sp, i dont think a motor will turn over with no neg cable attached.
remember, even if you have no fuel pressure, the car still turns over (it cant catch cuz it is missing fuel).
Brimak, i will normally cycle the key on and off a couple of times to build full pressure back up. i dont think you even need to do that. the pump moves a lot of fuel - and a lot of folks dont even realize how much pressure they lose overnight, etc, if their system bleeds pressure off when the car is off.