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I know it is an Amazon link,but other suppliers are available
https://www.amazon.co.uk/AGROHIT-Potato-Fork-Teeth-Handle/dp/B07N8XF132/ref=asc_df_B07N8XF132/?tag=googshopuk-21&linkCode=df0&hvadid=309920133577&hvpos=&hvnetw=g&hvrand=17899562043589044330&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9045966&hvtargid=pla-699693836785&psc=1Well worth it if you a growing spuds again next year
What variety? I did a few experiments with trenches and straight in. Did notice a difference I yield but the biggest difference was the ones in mounds survived the late may frost much better. Earthing up was much better than covering them.
Think if you do no dig you don’t need mounds so much.