There's some more data around on the web .. e.g. on archived IJDb http://web.archive.org/web/20120418145054/http://www.jugglingdb.com/records/index.php.
And I found a chinese records site http://juggling-donuts.org/record/local/patio_jug/index.html. The sections for 5b cascade [in the first paragraph] is 5ボールカスケード , for 7b cascade it's 7ボールカスケード and 5b-744: http://juggling-donuts.org/record/local/patio_jug/index.cgi?mode=seeenmokudata&enmokuid=2-0-744 .. but it's lotsa work to decode the chinese signs per e.g. babelfish http://www.babelfish.de/dict?query=%E3%83%AB%E3%82%AB%E3%82%B9%E3%82%B1%E3%83%BC%E3%83%89&src=auto&dst=de&submit=%C3%BCbersetzen or some online-translator