There are some holes that are shorter from off the tee from the Black/Championship tees.
#15 is one of them. #7 on BPB is the other, but it's simply a different angle - still plays roughly the same.
At Kiawah holes #2 and #3 are shorter for the Legends. But not by much, and the angle to the fairway is very different.
Had a birdie putt on #15 the other day, tourney greens, was below the hole. I missed the meter right and my ball rolls by the hole on the right, and seems to stop just above the hole about 1.5 feet away.... but the next load did not change... it started moving! slowly....
"go go go go go go go!" I shouted
It took about 15 seconds, but sure enough. BIRDIE!
my challenger, and myself were simply stunned! He also went on to make birdie, but he actually made a solid putt!
One of these days, someone will have an uphill putt there and lip it out, throwing the ball above the hole where it rolls back down.... and LIPS OUT AGAIN!
(I hope that's not me - had this happen on TWO back when I played that beta for a bit)