Tein Super Drift?
Tein Monoflex is basically same thing as Tein Flex.
Flex is discontinued and now its called "monoflex"
For Competition level racing, one of the names that popup often is Moton.
And also in your research you seem to only have, cusco tein and jic.
Looked into Buddyclub? They always have good reviews, what about some Blisten? Kw var2 if your after a more street application?