I had just purchased some black T100s and went to Fields ferry and on hole 12 195yards I hit a 5 iron using a prov1 #17 with a clover and indeed was good luck. 3 months later I hit my second hole in one at Dalton golf and country club #9 129yards using a 9 iron which I felt come off the bottom groove. I didn’t think it was a good shot until it one hopped into the hole.