"All that matters is that the signal arrive at the shaped charges to insure that the compression wave is close enough to spherical to sustain the required geometry."
No, close doesn't cut it. The implosion has to be utterly perfect.
A California university recently duplicated a Georgia university's experiment in which deuterium acetone was blasted with ultrasound. That liquid then formed bubbles. The perfect bubbles eventually imploded while creating a neutron event (i.e. fission or fusion). The imperfect bubbles just imploded. No neutron event.
The difference between an imperfect bubble and a perfect bubble is minute, but it makes all of the difference between a neutron event or a non event.
"No, close doesn't cut it. The implosion has to be utterly perfect."
'Close enough' is entirely subjective. I said it needed to be 'close enough to spherical' and even if that really means 'perfectly spherical' my statement was true on its face. There is no such thing as 'perfect' when it comes to man made artifacts. The requirement that the implosion be 'utterly perfect' is false. Putting aside your attempted obfuscation, what does the rest of your post have to do with what we are allegedly discussing on this thread?