The parts of the SG binding may look the same, but they are not. They use ball nuts instead of t-nuts, which means, that there arise no shear forces, when using canting or heel/toe lift. This and the more robust construction in general of the SG binding, is another advantage over the F2 bindings.
A conversion with F2 Intec attachments would be a tinkering and offers no advantage over the original F2 bindings.