I just played the Merion front nine ready go and on two holes #6 and #8 I pulled the pin like I always do,on both approach shots I hit an invisible flag stick that wasn't suppose to be there,,,WTF is that WGT?????,,it cost me two strokes as I par'ed 6 because the ball only ended up a few feet from the hole but bogeyed 8 because the ball rebounded about 20ft in to the rough,not a happy camper as both approaches should have resulted in birds,when the flag stick is pulled it should not still be there to interfere with a good shot!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!