Yea ur correct Asics japan s and skycourt are the same sole,
Saucony jazz court does look very skateable
I just started wearing a pair of Saucony shadow 6000 for chillers and they are very very comfortable
I bet the jazz court sole is cushioned well and grippy with that gum herringbone tread too
Seen some dudes skating (on insta) the jordan stadium 90, wouldn't mind having a look at them
But they are very pricey for what they are. Maybe one day on sale for that one,
looks like something Lavar would of skated at the pier, well in in my head anyway