One thing I've noticed, is an inconsistency from one model to another. For example, some Mathews models are quieter then some other Mathews models. I've even noticed significant differences from one bow to another, of the same model. Add in the differences that can be obtained from add ons, accessories, and different strings, and you have a situation that is almost impossible to accurately evaluate.

For sure, they are all quiet enough, when set up properly.