You could, but that will increase the resistance. Typically you want the coils to be responsive and heat up quickly. Once it is wicked and primed w/ juice the coil will not get as hot and glow as the juice and the air being drawn through it will keep it much cooler than simply 'dry firing' it. If you are making coils then you should be testing the coil to see just what resistance it is. Lower ohm coils will produce more vapor, but if it is too low it could cause problems with your battery either not firing, if it is protected, or going into a 'meltdown' if you are using a mechanical device.