Factory says to bleed the slave and master cylinder from the bottom up. So, here it is in a nutshell:
Fill up the slave cylinder with fluid
Connect slave cylinder to clutch line (DO NOT INSTALL SLAVE ON TRANSMISSION YET)
Fill up master cylinder
Cycle slave cylinder multiple times completely in and out, slowly, by hand
Keep eye on master cylinder fluid level
After 10 cycles, attach slave to transmission and test with clutch pedal
Repeat as necessary.
Do your bleeding that way, or else you'll never get it right. Some people get lucky, but you're obviously not one of them since you're here and asking for help. Report back when you get that done, and if that doesn't fix it, we will go from there. But from what it sounds like, I can guarantee you have a few small stubborn bubbles in your line that won't come out unless you bleed the line properly.