The main trouble with enormous spuds though, is that they sometimes grow hollow, and that ain't a good thing!
Been growing Sarpo Mira for a decade and they produce wonderful large potatoes that I use mainly for chips that I freeze through the year in batches part cooked.
Must admit they store very well in my potato shed and are still doing well mid summer after the late autumn picking.
They do bulge out my bags in the growing season and being so large do give a and are great croppers producing wonderfully.
As I mentioned in my thread a few years bag, with my bag only experiment,
https://chat.allotment-garden.org/index.php?topic=124530.0the bags give me 23-25lb of potatoes per bag for Sarpo. Last year all of my bags were just that, but one was just under 27lb, a record for me for that breed
Never had a hollow one ever. In fact do not really get any problems at all with them. Or in fact any problems with any of my potato varieties.
Have all my first/second and maincrop chitting nicely now.
Would say be careful knocking off chits, you could probably do more damage by doing that than just leaving them.
Would say if your potatoes comes with loads of white chits in the first place, they have been stored badly at your garden centre and probably not a good choice.
Mine I have been buying for many years (Taylors and many years back some from Unwins) from my local Garden centre are looked after well. Probably more important to consider where you purchase them.