Steve Stricker and Webb Simpson are using drivers w/910d headcovers this week in Hawaii. It appear on TV that they are NOT use 910's as the face of the club is stainless steel, the club sole is stainless and the hozel does not appear to be adjustable. What drive is this? I am looking at purchasing a 910D but do not want to spend upwards of $400.00 for a club that may soon be not be the newest offered by Titleist.