Hi again, well... I just had to play with it.... it's completely out of Lucas smoke! When I took it out it looked like this:
Inside the circle is what looks like 'charring' and there was a spot of black residue. This may just be from repeated contact of the bits. I've since cleaned the whole assembly.
On the other side, in the area the arrow is pointing to, there was a solder point sitting very very close to the turn signal contact is. This may have shorted and caused the smoke? I've since bent it up an away so if it was a problem, it can't happen again.
The box in the middle shows where there is a nasty crack in the assembly, which is what caused the floppy high beam switch. The resistance between the "high beams on" position and the "high beams off" position was barely noticeable and could be moved between the two with the slightest nudge. So I came up with this:
That yellow object is a straightened plastic coated paper clip, cut and bent to provide some pressure on the high beam 'thingie' that presses on the stalk assembly. Works a treat!
After putting it back on there is now ample resistance in the high beam switch. Both indicators still fine too

.Hopefully they stay that way.
Thanks for the help,
Marty & Manda