I did mine the other night. I ended up stripping it all apart just to be nosey. It was cleaner than I expected. No sign of moisture at all. I had a look to see if changing the original spring was an option. Being tapered it wouldn't be worth the hassle. Drop in the pill and bleed the line. I have a stiffer longer spring I could drop in, but it sounds like the C612 is all it needs. The thought of the rear wheel locking up sounds rather scary, so I'm happy I've done this now.