Close. The gaps in the shutter are fixed relative to the shaft, so is the rotor. Yes you can make the rotor point to any terminal and that can be done by rotating the hosing or rotating the shaft (which is what happens when the engine runs) BUT the pickup is attached to the distributor housing, so rotating the housing does not change when the signal is generated vs where the rotor is. It DOES change where the signal is compared to the crank. You can keep cranking the dist til you get the timing number you want BUT the rotor won't be in the correct place, it will be probably 45* off from any terminal.