thank you for the time and effort spent on the publication mr @RicardoSantos. Great info as usual....and @xel_arjona, appreciate the link as well...though "lazy" could DEF be used to describe a portion of the audience trying to understand the use case of mr Santos' publications, but (for clarification) is NOT synonymous with the portion that perhaps is not as comfortable with the subject and thus doesnt have the best filter to discern what is to be a useful google search result reference from another non-useful one (the term "useless" doesnt seem to fit this situation). though I refuse to put myself in the "lazy" category (as you so myopically described as the portion of people that would appreciate the link you provided) bc AS MUCH as I appreciate the time and effort spent to create the publication, I equally appreciate the guidance (provided by others more knowledgable than I) pointing towards what would be the most useful reference to start with to expand my knowledge of the subject at hand.