Recently purchased 05 gto, 50k miles, no leaks and runs strong. However, first and second gear are really stubborn sometimes. Have noticed junk in the slave reservoir, drained and refilled multiple timed. I saw on other threads that the slave piston is picking up clutch dust and it makes it's way back to reservoir but this shouldn't cause such stubborn shifting. Noticed it's worse when I'm just puttin around. I can bring shifter back to home position and goes to second fine. Also significant vibration in stock shifter through all gears but it almost rings when I accelerate in second gear. I Generally don't trust transmission mechanics so what's my next step other than a fluid change. Thanks in advance.