I have visited Hawaii numerous times, even lived there for a time. Among the foods I miss most is the shave ice I could get at Waiola Market and especially at Tropicana's at the foot of St. Louis Heights. I took a Taiwanese friend to Waiola's one time and he was not impressed; He said that the shave ice in Taiwan was better. But also what is interesting is that both Waiola and Tropicana are run by immigrant Asians, not Hawaiian locals. And I consider these places better than the more popular Matsumoto's because of the smooth texture of the ice, more like light sorbet than snow cone.
I know there are chowhounds out there who have had Taiwanese or Korean "shave ice", although I know they wouldn't necessarily call it that (Hawaiian phrase). If there are any leads where I could find these, even in the greater LA area like Ventura, I would greatly appreciate it. Thanks