I see that there have been reviews of the ABKO Topre-clones from Korea. They seem to use a pleasant enough mechanism.
I tested a silenced Realforce 86U, and it was great. The new Realforce R2 seems good too. Aside from proprietary issues of not being real Topre, and having a more streamlined design, does anyone know how the ABKOs compare out-of-box with good Topres such as the Realforce?