The little secret is you need to push the wire into the connector, then push the flat end of the extraction tool until it goes in no further and hold it there. Then twist the extraction tool and pull on the wire. After a few goes, you will get the hang of it. The extraction tool is an expensive POS. I made one out of an old jeweller's screwdriver. I had to file the end down, but it is heaps stronger and easier.
