then, about the electronic unit to one field wired alt... I have had some different opinions about those units, being some bad, some good.

about the dual field myth... he is right all alt have dual field since you need both fields to create magnetism inside the alt.

The diff is being when both are wired from a diff alt source or one wired and the other one directly grounded to alt. Thats maybe the reason to the single and dual field alts denomination.