It has never been the policy of the SSPX, or was it a policy with +ABL, to always conditionally re-ordain a priest who goes to them from the conciliar church. Each case is investigated so as to determine whether or not a conditional ordination is necessary. Of course nowadays with the SSPX, they are probably not as careful about determining whether or not a priest's original ordination was valid, but the SSPX has never believed, even under +ABL, that NO ordinations are always invalid.