Tried to insert photos again, but must be tablet wont allow me to. But to answer you question, the string direction is correct. That has nothing to do with sub models. As I stated the curtain effect set to open from the middle at node 101 the right side opens as it should but the left side starts open at nodes 50 to 51 right and left side. It should start open at node 100 and go to the left just like the right side