Thank you for your comments @helenoftroy !!! Actually I was shocked, I expected the container potatoes to be even more vibrant, because the vines were so healthy. We poached the vines from the containers to plant our beds, so yes, the resulting potatoes below where horrifying LOL.
Thanks for the advice on the pictures....I'll check it out and see about reducing the size so it loads well for everybody. :D
What a great experiment then ... I imagine you'll continue using sandy looms ;) It's funny because every time I go to the store and see little shriveled sweet potatoes I wonder if they grew them in dark soil LOL