Micro Seiki MA-505LS tone arm, anybody familiar?

Looking for anybody who is using or has used a Micro Seiki MA-505LS tonearm.
This is the long version with silver wire.
Interested in hearing your thoughts and opinions on this arm and what carts you ran on it or think is best suited to it.
This is mounted on a very solid plinth containing a Garrard 401.
Thank you.