[Flip]

Yes it would be interesting to know when they changed the seal material as my Oberon slave cylinder has always turned the fluid black too- although to be honest I've never been bothered as my bike has the coffin reservoirs so you can't really see it and it doesn't seem to affect the operation of the clutch.

I only really fitted it as it matches the other gold anodised bits on my bike, I don't think it has made an awful lot of difference to the lever pull but I've also never thought the Monster clutch particularly heavy anyway.

It's kind of mid-way with both my little race bike and Vespa P200e's clutches being heavier while my Yammy Thundercat is (a lot) lighter.

Angling the lever(s) so they keep your hands/wrists in line with your forearm makes a bigger difference to ease of use and rider comfort in my opinion.