I think you should pull it out. If it does not break then you can insert the rubber (or a small blob of silicone in the back of the socket hole, producing enough forward pressure to make it stiff - yet adjustable). If it does break when you trying to pull it out then you glue it in a set position, but don't glue it in a set position without trying to pull it out first.


There is another way if you really don't want to pull it out - glue it with something like Alcolin Clear Adhesive (Or similar) in a set position. Then if you need to adjust it later you can pull the glue off with relative ease and re-glue it in a new set position