Stupid question but do you still need the mechanical advanced centrifugal weights of do they not work after fitting these?

btw typo in this videos title, 'Lumeition'.

I've just acquired a car with a Rover V8 and Mallory distributor, which used to be the 'thing to have'. In your opinion would you stay with the Mallory or switch to something else and use the Lumeniton kit or something similar? I think Jeremy has a Rover V8 in his seven style car, what's he using?

Hi, I don't know if you will see this but looking at a mg b for a friend who has this kit, they are struggling with no spark, The neg coil wire seems to only be switching intermittently, when looking at the wireing very briefly the earth was not bolted directly through the box but was bolted to a suitable place on the body, does the actual box itself need the earth lead bolting to or thorugh it as you say near the end of the video, or is it only the wire that needs earthing? Thanks in advance.