This is one of those cases where there are two hostas with the same name. One is registered and, therefore, the "official" version of H. 'Super Streak' while the other is a non-registered plant and needs to be renamed to avoid further confusion.

A self-pollinated seedling of a variegated seedling, this medium size cultivar was registered by Dr. Kevin Vaughn of Massachusetts in 1982. The leaves are heavily streaked, broadly ovate with moderate corrugation and good substance. Its lavender flowers bloom in August.

Hosta Helper will call this plant 'Super Streak' (Vaughn)

According to The Hostapedia by Mark Zilis (2009), "The 'Super Streak' in the Wade & Gatton collection, however, had stabilized to a green-centered, yellow-edged form and reached mound proportions of 25" high by 39" wide."

This is the one shown at the top of this page from Van Wade's gardens. Technically, this could be given a separate name and become a new cultivar.

Hosta Helper will call this plant 'Super Streak' (Stable)