[ALR-bishop]

I tend to think of variations as intentional changes in cards, or changes resulting from decisions or changes made in the printing process ( including DPs ). I think of recurring print defects ( it is sometimes impossible to determine if these were discovered and corrected) as variants.

For Topps I have collected any "variation " listed in SCD, Beckett or The Registry. Many of those are in my view recurring print defects ( Bakep and Herrer for example). I also collect variants or recurring print defects for my sets.

Some I find on my own, some I see posted here or in other venues. When I see one I do not have I look for it on eBay, or Deans or COMC if it involves a back. if it does not show up there over some period of time I drop it as not recurring or recurring enough.

I would keep both. Hatton because it is apparently recurring though scarce, and Cico because that type of defect tends to be recurring, even if rare ( like the Campos black star, partial star, missing front border)

On the House I have heard it argued it is a variation because different versions of it appear on different backs. Not sure myself