I think Milenium one is good for road use because it also has variable degree timing that most of them don't have. From start to finish it decreases 15 degrees with original MVT CDI
It's light coils are 100W and that's even better than original one. I can run all electrics I want including high beam and 2 separate koso 20W lamps. I ride it lots of time at night on summer here in Portugal.
The weight is less than the original one around 150g and magnet drag also decreases(it's simply noticed when you turn both rotors at hand).
You can upgrade it to Digimax CDI with 3 ignition curves (each one you can fine tune -3 to + 3 degrees-like that it make 18 curves)
The new polini one started to be like a CGC one but turned out to be a normal one (you can see first pics at polini site and latest pics at scooter-center).
CGC factory closed almost 2 years ago. Only place I knew it was sold was on
www.50cc.nl old catalogue.
I could only get all this information after buying the hole lot. There is no information about MVT whatsoever on the internet. I searched for months...