fair enough, you are right to point out that I did have my share of cold joints, and broken wires. that has been history for a while. Reflow once, reflow twice, and if in doubt, reflow thrice !!!!
A stepup transformer has also taken care of wall voltage, really necessary here in continental europe (vs the UK)
Now, it's really purely mechanical, and the socket metal has really lost elasticity (i don't know if it's my misguided reshaping, could be).
Oh well, a couple hours job.
marc