Its a balancing act, i never said it was easy...LOL. Yeah, now that i think of it, I usually cut the thresshold to just the width of the jambs and I would trim the door stops. you still have to slide, curse, wiggle the piece under the ends of the stops but its easier than the whole jamb. Just be carefull with the marble, it dosent take much to crack. If you install the door over the top, leave some space for the door to settle.