Looks like a lot of work. I know you've done this before but I think I'd run the plow down the middle of the potato rows and plant deep then hill the dirt back around as they grew.
To each their own...and I consider work as its own reward.
My approach is considerably different and proven to work in my garden for decades. I don't disturb the intended potato soil other than dig the potato holes for planting for many months in advance of actually planting the eyes in order to optimize soil microbial growth.
I start prepping my potato row the spring/summer before planting it the following spring or fall. The prep includes composted cow manure followed by a legume usually Sunn Hemp, and a winter cover of turnips/radish which is chopped into green manure.
This process provides a soil chocked with organic matter that potatoes absolutely love. No fertilizer, none applied before, during, or after and no soil disturbance other than digging the hole and hilling. The organic matter breaks down gradually feeding the potato eyes all the nutrients they can uptake.
This process results in scab free new potatoes which are generally grown completely pest free including the Colorado potato beetle. No sprays, no fertilizers just pure delicious spuds.
The soil test I ran this year on the below potato row yielded the highest N content I've had at 112 ppm total N. The P = 67 ppm and the K = 133 ppm. All those readings are well above what is normally considered "good enough" for gardening. And all natural.
This row will provide well over 200 pounds of new potatoes this May including red Lasota, red port, Yukon gold, Sarpo Mira, and Sarpo Uni. One of the rows shown in this thread will be the "fall" potatoes crop and will also produce well over 200 pounds.
Work? Nah, not to me. I just don't look at it that way. It is rewarding. It is a way of life I prefer.
This spring's potato row...
