I have used the LF/SW's six-point internal support system for two years and the six-point suspension system for one year. Here is my conclusion. For uber high tension like 32 lbs or more, six-point internal supports is a lot better than the other. The frame move a lot more under the six-point suspension system, but mounting a racquet is so easy and fast. The frame doesn't move at all or very little under the six-point internal suspension system, but mounting a racquet is a bitch. Here is a gadget for keeping the cross from deforming as much during tensioning the cross. It is used for machines without external frame supports.