Lots of people claim an ultrasonic jewelry cleaner (costs 25-30 bucks at amazon) filled with Vodka will do a great job of cleaning these things.
That being said, I seem to get a slightly burnt taste with clearomizers anyways. I think it has to do with the wicking agent being on the top, and me keeping the vape-stick vertical too long.
I'm not sure one can really get rid of that once it begins.
I am getting fantastic vapes with a DCT setup. If you might be up for trying something new, you may consider the DCT, Dual Cartomizer Tank. It works by surrounding a cartomizer with eliquid in a tank.
This tank is a locking DCT. This means there is a groove and a nut at the bottom of the tank to hold the cartomizer. There is no way it can pull out on you, which is one of the potential issues with tank set ups.
http://www.madvapes.com/artemas-locking-510-dct-clear.html
The cartos are replaceable, and will last a few weeks each. They cost 2-4$ each.
http://www.madvapes.com/smok-tech-30-ohm-steel-dual-coil-cartomizer.html
If you get one, keep in mind, there are two different sized tanks and two different sized Cartomizers. I personally use an XL tank. It holds about 6ml. I'm pretty sure it uses 44mm (I think) length Cartomizers.
However ask your vendor to match the cartomizer with the tank the first time to avoid any mismatch.
Here's a video on how to fill the tank:
http://m.youtube.com/watch?v=4jOU-P5lNro&desktop_uri=/watch?v=4jOU-P5lNro
Though you can ignore the warning about the tank sliding off, if you buy the locking DCT.
Also, some vendors sell a tank fill tool that speed up filling. Get one
I've got a handful of new clearomizers I just can't bring myself to use now, because I'm no fan of the burnt silicon taste.
Good luck