Driving in 34 F weather about 7 miles to my storage my 40 started slipping clutch...RPM went from about 2000 to 3000 as clutch was slipping about every 5-10 seconds,but was still ok...As I was ready to leave my storage I could"t move....Clutch was so hard to push and than too easy to push...Brake fluid from clutch master disappeared so I put a new fluid and it slowly disappeared too...I checked the slave cylinder and squeezed a little rubber hose (Part of rubber dust boot)and fluid was pouring out...Slave cylinder has about 3000 miles on it and is almost new(aftermarket)..Master is older,but looks ok....What is the problem ???Slave cylinder or master cylinder???Thanks for your opinions...