Perhaps you should bleed it yourself. The clutch not coming back to the top seems like a hydraulics issue, not a clutch disk issue. That, or they screwed up the install of the CSC.
I put a flywheel on a few weeks ago and completely emptied the clutch fluid, even squeezed it out of the CSC. After a proper bleeding, it works like it is supposed to.
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Competition Clutch|Fast Intentions|Maxbore|NST|Setrab|Stillen|Tomei|Uprev| Z1
Avant Garde|SPC|Stance|Whiteline
Aerojacket|Seibon|Tanabe|TRS|TWM
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