Aquatint Test on Polymer Photo Intaglio plates

Wanting to see the difference between thin plates (from Takach Press the KM Photopolymer plate is .017" thick) and medium thickness plates (from Boxcar Press the KM 73 Photopolymer plate is .030" thick ), thinking that the thicker plates might have a more forgiving and fuller grayscale range.
Also wanted to see how much darker a shorter exposure would be.
Here are all the images in order of printing. (number and info is below each image)


image #3 from KM photopolymer plate from Takach Press
10' stocastic screen aquatint exposure and 10' image exposure



image #5 from KM photopolymer plate from Takach Press
10' stocastic screen aquatint exposure and 8' image exposure



image #7 from KM photopolymer plate from Takach Press
10' stocastic screen aquatint exposure and 6' image exposure



image #9 from KM73 photopolymer plate from Boxcar Press
10' stocastic screen aquatint exposure and 10' image exposure



image #11 from KM73 photopolymer plate from Boxcar Press
10' stocastic screen aquatint exposure and 8' image exposure




image #13 from KM73 photopolymer plate from Boxcar Press
10' stocastic screen aquatint exposure and 6' image exposure




image #15 from KM73 photopolymer plate from Boxcar Press
10' stocastic screen aquatint exposure and 5' image exposure