@Marios I find depending on the lever if you put the bushing upside down you won't be able to twist battop and when it's put it the right way it spins freely. I noticed this on the fujin awhile back. The tolerances between bushing, actuator, shaft and e-clip play a big part in this and any slight change will impact how the lever feels.
Good news everyone! I messaged @Wazwuz lastnight to see if he can design a metal bushing for myoungshin and looks like he was already planning on making them. So in order to eliminate the use of the stock bushing because they get worn out like crazy and sometimes come warped the metal bushing will alleviate all those problems.