circular lead frames!

[Graham]

Great suggestion, Graham.  I'll put that in my memory banks if there is any more RAM in them.

My memory banks are full. I generally have to forget something old before I can remember something new.
It's not possible to select what goes into "trash", so it's a catch, or more accurately "release as release can" proposition. Sometimes what I lose is far more important than what I gain, but what the hell: a change is a good as a rest - or something like that.