I still see a few issues. Should be able to patch into Forge Mod Detector Free tomorrow. You're getting closer though. The currently leaked version of Forge Mod Detector will miss it now (which is a good thing I guess).
you should def buy the plugin instead of waiting for the leak to be updated. anyway the forge client's netcode is so different from the vanilla client that I will most likely be able to repeatedly patch this exploit.. assuming you find a workaround to the fix I implemented earlier today