dont train new position! even if the player has 2 or 3 positions, most likely he is best at one, not 3. so if you have dmr mr amr, maybe he is best at mr and decent but not best ar other 2 positions....so training new positions is useless....special ability is better but also kinda useless... get him 3Q points higher and maybe play him out of position with an arrow to his natural position...