IIRC, double predestination is fine - double ***positive ***predestination, is not
So it would be impermissible for a Catholic to maintain that God positively predestines anyone to be reprobated - if by this were meant, that the act of God in decreeing the predestination of those He elects to salvation, & His activity toward the non-elect, were symmetrical. So to say that He decrees the non-election of the non-elect in such a way that He positively wills that they be reprobated, is not allowed - one is forbidden to ascribe to Him the same sort of activity in both cases.
I don’t know whether there is (in Catholic theology) any decree regarding the non-elect at all.
I prefer Calvin’s method of approach, as it consults the Bible constantly - the Catholic approach is too remorselessly philosophical. Since these things are revealed truths, not metaphysical propositions, human philosophising has to be curbed by what it has pleased Almighty God to reveal of his purposes. I particularly love Calvin’s frequent rebukes of the tendency of reason to pry into the secret things of God - he insists that we must rather adore that which our blind, fallen, and sinful minds cannot penetrate.
As to the further question whether one is allowed to hold double pos. pred. ***if ***one can reconcile it with Catholic teaching, I don’t know the answer. The teaching of the Council of Orange, Quierzy, & Trent, is permanent Catholic teaching, & cannot legitimately be rejected - supplemented, yes; subtracted from, no, fasified, no; neither can their anathemas.
That said, this does not settle whether DPP is absolutely & in all possible forms condemned - what is condemned, is (for instance) anything that makes God the Author of evil, or denies the reality of moral choice, or requires Him to create human beings purely so that He may condemn them to damnation.
What does seem not to be allowed, is any suggestion that condemned propositions do not accurately represent the ideas they express. From which it seems to follow that if someone is credited with a doctrine in a particular form, he taught it in that particular form. ##