Thanks for the comments, guys - I just got lucky
<< Are you galloping around the garden with cam on tripod? >>
More like lumbering, in my case ...
As I'm using an FD lens, there's little chance of getting anything decent by handholding same (+ the fact that my hholding skills are nothing like those of other ppl here anyway) ... so I just accept that fact / restriction.
There's more 'bits' between my tripod top and lens clamp than most ppl, I suspect, which give me a greater radius of action (and movement axes) than normal - without having to move the tripod itself - this helps if I'm trying to 'follow / track' something.
Re the bubble reflection - I'm still uncertain about what's in the lower right area, as I'd have thought the lens (end) has to be in the centre of the bubble (assuming spherical)?
pp