There is this misconception that auras preempt grand mal seizures. Epileptics have some kind of internal warning system for grand mals and can prepare for them.
This is not always the case - at least not in my case. When i was off meds, i had times where i would have partials and then a few hours later a grand mal. But I also had times where i would go right into a grand mal straight out of the blue for no reason. And I also had many many times where i just had a partial and no grand mal followed.
So for me, it's not a very reliable mechanism and I wouldn't rely on it.
This is not always the case - at least not in my case. When i was off meds, i had times where i would have partials and then a few hours later a grand mal. But I also had times where i would go right into a grand mal straight out of the blue for no reason. And I also had many many times where i just had a partial and no grand mal followed.
So for me, it's not a very reliable mechanism and I wouldn't rely on it.