I have neither and tried to find the right combo. I have a Force shifter. I was hoping to be able to get a rear derailleur that I could interchangeable swap a 11-28 cassette on a rear wheel with another 11-32 cassette on another rear wheel to make things simple if I need the extra gears. I'd liked to stick to the same models, so I know that there is a Force 11-28 and a 11-32 cassette. It sounds like the best thing to do is to get Rival or Apex derailleur for this.