Yes - thank you Richard - I understand you clearly now.
I think it's inevitable that we bring different views/interpretations and muddles to this message board. It's not quite the same as talking/trying to understand another's words/meaning in real time - when an immediate clarification may be given and the conversation/dialogue continues in the light of this.
I often look back at what I've written - no matter how much effort I've put in to trying to communicate well - and feel I haven't expressed what I was really trying to get across at all.
Anyhow - one tries