Second planting first earlies

So after I'd planted up all my potatoes from spring for earlies I had a few tubers left over. I kept them to one side thinking I'd find space for them later. I never did find somewhere to squeeze them in so instead when I dug up my first spuds in early July I replenished the soil with some bfb and planted my left over spuds. I harvested some a few days ago as the frosts had got the tops and was impressed with the crop. Not as many useful spuds as first crop but plenty enough, certainly worth doing in the future.