Changed to Luk after the previous clutch (sach) spring plate broke. The sach change lasted about 2+ years (too short compared to another earlier sach which it was on).
Haven't change the flywheel, but did do skimming during the earlier change to sach.
Check your pumps (slave and master) before you look at the clutch. Even juddering/jerking can be due to a non-smooth pump action. My slave pump was not smooth at one time in releasing the clutch hence the car jerked (was worse during high temps and traffic jams). Pumps are cheaper to look at first before plunging for a clutch job.
cheers.
Can do quick clutch test - read from somewhere -
Brakes on. Into 1st. Drop the clutch. Car should jerk and engine stall.
If clutch is bad, you'll be able to sense the slip and the engine will only stall later once friction has built up.