Some very interesting results when trying the RFP30N06LE MOSFET again last night. It works and it works backwards as expected but like before, without the MOSFET it will not reset the Arduino. It also will not reset the Arduino if I momentarily disconnect the PMW signal. But it will reset if I let it sit for a couple of hours. The 2N7000 MOSFET should be in later today so hopefully this will work.