What LFO settings needed to emulate analog synthesizer drift?

[Remedial]

Hi, all. I'm trying to find ways of generating more life in my patches. One thing I would like to do would be to emulate the pitch drift commonly found in analog synths. Now, I'm guessing (hence my post title) that an LFO would be perfect for this. I'm guessing the LFO rate would have to be slight and it would have to be modulating the pitch of the oscillators. Am I missing anything here? Also, just to be sure, the only way to assign one of the 3 LFO's to Oscillator 3 is using the modulation matrix, correct? Thanks beforehand.