I just built a 14-28 with HG sprockets from a Shimano MF HG22 onto a DuraAce (MF 7400) 6 speed freebody. I like the high quality of the DuraAce freebody.

Very good friction shifting with a SRAM chain.

I am quite happy. Looking for more sprocket options. Maybe I'll check out the Sunrace to see if I can cannibalize some sprockets. Really want to get rid of that black 28 sprocket with the Shimano graffiti.

Also, I want to be able to build a 13-24 if I can find the right HG sprocket.