Thanks John, I'll make sure to check that,they sent me a bunch of different 0 rings,a rubber boot about 1" diameter,etc.I'm sure it will be easy figured out when it's torn apart. if I need a new piston for it then I'll just have to order it and wait.If it doesn't seal properly when the braking/caliper action actuates it, the anti-dive will be degraded or fail entirely. I'd examine the seal's seat in the fork slider also
I'm holding of doing it till the new fork springs arrive in a few weeks,hyperpro are including 15wt oil,not sure if I'll use that or 10wt. I weigh in around 240lbs geared up so maybe the 15wt could be spot on.