1998 Rodeo, 3.2, 2wd, 5 speed, 102k miles, clutch fluid changed and bled at ~75k

the past few mornings, my clutch seemed to be slipping (or not engaging normally) when accelerating from stop in first gear. there was also a little bump or two going from first to second. after driving 15 miles or so, things seemed back to normal with smooth clutch engagement. same thing coming home from work in the evening.

i checked the master cylinder last night and it was nearly empty. there was no sign of leakage from the master all the way down to the slave. i flushed and bled the system and everything was back to normal...until this morning. same problem, just not as bad.

i went ahead and removed the slave to look for leakage internally. the boot and push rod were covered in grime. the bell housing had a little too. i pushed the slave piston assembly in and a little fluid and few tiny bubbles came out. i repeatedly pushed the piston in and out till there were no bubbles, put the slave back on and took a test drive. back to normal.

i assume replacing the slave will solve my problem. should i remove the master and clean it while i'm at it? anything else i should do other that replace fluid, bleed, and re-adjust the pedal?