The, now famous, Trick of the week serial created by the Konečný brothers presented every week a new spintop trick/variation of trick.
CZ: Suns za zády, moc místa tam mít nebudeš, ale jde to.
EN: Suns behind the back, you won’t have much space there, but it works.
Konečný brothers
Multiple European/world champions
The Konečný brotherhood, from Czech republic, foundators of the Spintop.cz team.