Ravi,
I am currently in the process of playing the finals between India and SA using your patch. I bowled first and SA batsmen did not advance down the wicket so many times like NZ batsmen. Hence, it might just be a triat of NZ batsmen. You need not think it is a problem. NZ batsmen advanced to the spinners about 15 to 20 times while SA batsmen advanced only 5 times.
Once I complete the game, I will put in my comments. This is on a green pitch and I opted to bowl first.