Never had any issues with squeeking to be honest...
I have had less problems with squeeking, warping, vibrations, and all that once I started being pretty careful during the break-in period after you replace your pads... Need to get them seated right and I haven't had any issues. I know for cars they have the jelly you can put on the back of the pad, but never thought about it for a bike... probably because there really doesn't seem to be that much brake dust buildup anyway which normally causes the squeeks...