Hello MarkN
It is a worthwhile set of questions you ask.
You have asked for thoughts....
I hope members will take up some or all of the challenge.
I think this will take some time....
The Victa Code system is limited in scope and deceptive in operation.
It summarizes a few components with then current part numbers.
Another significant problem is part number change. For what reason?
Is it a design change; a colour change; a supplier change; a material change;
a packaging change ...? It's all about joining the dots.
It will be interesting what folks may uncover here.
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Jack