Villian kahler trem string change

Finally getting round to changing the strings on my Villian Maple, but I've never done it on this trem before and got no idea how. Tried online but haven't found anything useful. Help please!

One by one

Looks like the Spyder? 
If it is just unscrew from behind and it'll release the string. 
Cut the ball end off and feed it through to the back of the saddle and tighten up again, then feed the other end up through the lock nut as normal and tune it up. 
Do one at a time to keep the tension on the trem springs, saves a load of tuning issues.

Thanks - I know some need the ball end left on, wanted to be sure but may just dive in and take it  apart.

Get rid of those select pickups while you're at it

Some feed the string through the tuner first, using the ball end as the anchor at the tuner, looks ugly but if it works for them....