True, so I think we shouldn't confuse people with terms on the form of:When people use terms like Punch and Slam they're seldom discussing a waveform. They're talking about real world impression while playing. Punch and slam are not technical terms.
'slam' I've always taken to mean that there's plenty of headroom on the front end of the note envelope. "Punchy" to me is that the note envelope opens up quickly on the front edge.