That may be so Steve but your headlight internals are insecure and will vibrate ( even though you may not see it )
Even driven towards a car a night and 1 of the headlamp looks like it moves ( vibrates ) afraid that's now you mate .
@Stevo7682 again I didn't think of that either.
Just a little update on refitting the headlight adjusters.
To locate the ball on the adjuster onto the socket in the rear of the headlight, it's actually a slotted hole so you can't simply just push it in, as you can on aftermarket ones.
You have to slide the socket in from the left, on the offside lamp at least.
Your tip of removing a bulb, high beam in my case to hold the reflector assembly whilst you locate the adjuster is spot on, thanks

.