I'd say that Gallo's was just as difficult because of how accurate he had to be and how precise his timing needed to be. Threw it in a tiny space and exactly when it needed to be thrown. Peja threw it as hard as he could to the other basket, albeit behind his back, which also required an incredible amount of skill and timing. But it was not as impressive to me as Gallo's was. Obviously this is just my opinion so I hope Peja fans don't take it personally.