Originally Posted by
kingston
As I said, I'm skeptical that the pad contamination problem is solved with a different caliper.
The squealing is resonance, which is just looking for a reason to happen; it'll be happy to go ahead on the basis of any single excuse or combination thereof, so everything you do to minimise it counts.
Most cable calipers aren't double acting, which flexes the rotor onto one set of pads, which sucks mainly because it drastically reduces pad life (the pad rapidly wears where it touches first, until it conforms, at which point the thinnest part of the pad could be half gone), but also because that sort of nominal near-enoughery is what adds up to make stuff work badly.
The hybrid calipers, aside from being double acting and providing the significant benefit of self-adjustment, are going to work better also because they're necessarily made to tighter tolerance.