As I wrote, Grasp is a native Poser function, You don't have to change any geometrie. I found this out when I got the figures from nursoda. They didn't have the Grasp implemented but with copying the function from other figures and pasting it into the hands of his figures they had the grasp function.

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Ulli

"Never argue with an idiot. They drag you down to their level and beat you with experience!"