I'm having trouble getting the Mafacs to work properly. It seems that hard breaking causes the pads to move out of adjustment. I'm also getting a squeal at higher speeds. I've got kool stop salmon pads on now. Does kool stop make a Mafac pad for the original holders?

So what could be the cause of my pads moving around? Do I need to carry a wrench with me to adjust them after every 50 miles? I'm using Mafac racer levers with stock hoods. I'm pondering using the Cane Creek campy copy lever. Those hoods look a lot more comfortable than the Mafac hoods.