Yes Ken, it is all about hardware I have. 

The plexiglass is the only hw I have not tested; I have purchased one but not tried yet how it would work in the scanner or repro. I tested a thick glass plate for repro first, a plate intended to put under bottles, that plate was not optimal in any way. 

But else, yes, have and used, work in progress to conclude what I believe is best method, settings etc for my needs and equipment. What I know is I get good quality with both methods.