This is okay-in fact some consider it desirable. Please handle them carefully. When examining them, chitting, cutting or planting, leave the sprouts on. Ones this size are highly desirable. We try to manage our seed potato fields so as to produce as large a proportion of single drops as possible.
Larger tubers give the grower a dilemma.
As a general rule the larger the seed piece, the larger the crop both in terms of size of individual potatoes and overall yield. On the other hand, the larger the seed pieces used, the more seed it takes to plant a given area. At minimum, however, each piece should weigh at least 2-4 ounces and must contain two or more strong eyes. Most people cut up larger potatoes into pieces immediately before planting, using a clean, sharp knife. Spread the cut pieces out on a table in the shade or one layer deep in shallow boxes.