ok 40K on the bike and last 6 months slave was leaking .

read the forum - guys saying rebuilds last a couple weeks and go out again .

i tried the rebuild - sure enough 2 weeks or so and worse than ever - actually no clutch pull at all.
I had even polished the bore - the sides of the piston - resurfaced the mounting block - new o-ring ...

anyway - Rekluse installed.

forums often are worth listening to -