His advanced cleaning, while much more thorough I would do only as a "last resort" as the battery can be damaged
or the SD can break using all that force. I've read elsewhere of folks running into such troubles.
The newer version with the top metal spike may be an even tighter fit I've read here somewhere.
If I had it apart to that stage I'd likely just replace the wick and wire with new ones.
He does a vid on that too.