There are no equivalents that I know about.
Therefore, I just bought a Messenger Ti B/S/P from Ebay.
I kind of like my Ego; recent aquisition. Seems to go a little longer
and flip a little harder in the back end. Lots of (Super-Flex) power like the Messenger Tis. (Technically it uses UFD, which I am positive is a tweaking of Super-Flex.)