There is an interesting article on Hemmings dealing with how to splice wire.
Which Wire-Splicing Method Is the Strongest?
The article is interesting, but while it deals only with splicing, the comments have some very helpful information (at least in my estimation) that go on into crimping practices, wire wrapping practices, etc. I have copied some comments into a Word document, and may (as I get time, and if there is interest) post some excerpts.