When is dissent against Catholic teaching allowed, if ever?
Although not an assent of faith, a religious submission of the intellect and will must be given to a doctrine which the Supreme Pontiff or the college of bishops declares concerning faith or morals when they exercise the authentic magisterium, even if they do not intend to proclaim it by definitive act; therefore, the Christian faithful are to take care to avoid those things which do not agree with it.
and Canon 753:
Can. 753 Although the bishops who are in communion with the head and members of the college, whether individually or joined together in conferences of bishops or in particular councils, do not possess infallibility in teaching, they are authentic teachers and instructors of the faith for the Christian faithful entrusted to their care; the Christian faithful are bound to adhere with religious submission of mind to the authentic magisterium of their bishops.
Taken together, it seems that a good Catholic cannot disobey any directeive handed down by the Church hierarchy. Is this the case? I agree with the Church on 99.9% of her teachings, but there are a few things that make me uncomfortable. Should I submit myself in humble obedience or is it acceptable to hold a disagreement? How should this be handled?