For the record, Martin Luther was an advocate of Absolute Double Predestination. In fact, all the major players of the Protestant Reformation were predestinarians.
In fact, in his famous debate against "Free-Will" with Erasmus, Luther made the following comment to Erasmus:
Moreover, I give you hearty praise and commendation on this further account -that you alone, in contrast with all others, have attacked the real thing, that is, the essential issue. You have not wearied me with the extraneous issue about the Papacy, purgatory, indulgences and such like -trifles, rather than issues- in respect of which almost all to date have sought my blood (though without success); you and you alone, have seen the hinge on which all turns, and amied for the vital spot.
-Martin Luther in The Bondage of the Will, VIII Conclusion. (emphasis mine)
Luther, of course, was acknowledging that Erasmus recognized that the issue of "Free-Will" was the central issue of the Reformation. Erasmus, the life long Roman Catholic, advocated a humanistic "Free-Will" while Luther argued for a bound will.
Jean