my bad if this is in the wrong section.

work I've had done to clutch:
new master
new slave
new clutch
flywheel resurfaced

Problem:
had the master cylinder replaced 2 days ago. new master cylinder when pushed does not go as far down (towards the floorboard) as my old one. it goes down far enough to when i hold it and I'm in gear that the clutch does not engage, but as soon as i let off the clutch a little it starts engaging. however, when I am in neutral at a complete stop trying to go into first it gives me trouble; sometimes i have to press the clutch in really quick and throw it in gear.

so please if you have any ideas, I am open to hear them.

Edit: Forgot to say i cannot simply put it in reverse. ive tried going from 1st to reverse going through the gears to reverse everytime i put the car into reverse it grinds so i have to throw it in reverse fast

 

Clutch line to the slave sounds likes its failing. Also bleed the system again. See if you have any air in the system. Good luck!

 

How much material did they take off of the flywheel?