Which of this is better looking for a smooth throw and have a longer spin time
smoothness and spin time are going to be relatively the same on those two. your preference in shape will decide this one.
I feel that the supernova plays significantly faster, but the genesis is much more solid on the string
Spiner577, why are you asking this when your profile says Supernova is already your favorite yoyo? :-\
Yeah, if you look at your little profile info thingy, it says:
“Fav. Yo-yo: supernova”