It can be done - see my 1936 4G tank - but I will admit that getting the ball of solder the right size and shape isn't too easy.
The screws are 3BA by the way and Jerry Mortimore used to sell screws with a bulge representing the solder blob, working on the basis that most of us have poor eyesight these days so we don't notice the slot !
36 4G, 37 VH, 53 ex ISDT KHA (project), 54 KH(A), Healey 1000/4 (project)
Former Machine Registrar & Archivist, General Secretary and Single Spares Organiser (over a 25 year period).
Now Archivist once more - but not Machine Registrar.