I have not proven this but, I think the clogging issue has more to do with thickness of the liquid than the color of the liquid. Just make sure the liquid is thin. Add some distlilled water or vodka to thin it out. I don't think it could ever be to thin.
Here are some modifications I do to make this device more user friendly.
1st thing is to move the LED to the base so it's not blasting you in the face with the bright light.
- Using needle nose pliers. Lift each side of the wire holding the LED in place out of the small grooves in the side of the tube and turn the LED so you can see the wires through the top of the tube. Try not to let anything hit the wire connected to the atomizer.
- Using a pair of scissors. Cut the wires to the LED and remove it.
- Remove the screws from the base and the one next to the switch.
- Pry the base open/split it apart enough to pull the battery copmartment out.
- You will see yellow, red, and white wires running up the base. 2 of these wires will have clear shrink tubing on them where the wires were spliced together. The wires with the shrink tubing on them are used for the atomizer. You want to cut the wires that do not have spliced connections on them. 1 wire will be yellow and the other wire will be white. These wires provide the voltage to the LED. You hant to cut them as far up the tube as you can to leave some length for you to work with.
- Spread open the spring wire holder and remove the LED from this holder as we will use it later for something else.
- Splice the wires you just cut to the same color wires on the LED and cover them with tape or tubing so they don't short together.
- Push the LED up inside the base then re-install the battery holder in the base and screw it all back together.
When your all done the LED will illuminate the base and allow you to easily see how much liquid is in the chamber and you won't have that light shining in your face.
Some times you will have liquid that does not atomize very well and it will tend to splash or hop off the atomizer instead of turning to vapor.
We can use the spring that was holding the LED in place to build a deflector to keep any liquid from splashing or hopping out of the tube.
All you need it a stainless steel wood screw, A plastic dripper cap off of one of your e-liquid containers and the LED spring holder. See the pics below to build yours.
Hope that helps.
http://img41.imageshack.us/img41/9013/splashblock4.jpg