Half the time people blame the flywheel, when in fact it's the clutch and pressure plate making it a bitch to drive.
I had a 6puk button clutch in mine with a 1250KG pressure plate, on a 4.5KG flywheel. never had stalling issues myself, could drive it off the mark at 800RPM... Mind you, hand the keys to friends and because of the bitey clutch, it took them 50 goes to get moving.
Changed to an organic clutch plate and anyone who drove it afterwards loved it...