X11 steering slop

[salmon]

Recently bought an x11 08 2nd hand, only had 1 run out with so not had much time to tinker with it. Anyhow, been having a look at the steering as thought the servo horn ball was loose, however it seems to be the car that has the slop. Appears to be at the main pivots at the cross brace, is this normal or is there an obvious part that wears?

Also been looking at the orange steering upgrade and wondering if this is worth the £40 odd quid?