Ok sorry let me clarify and tell me if I'm wrong please:
MK1 has got low/high beam H4 and high beam H1
MK2 has got low beam H7 and high beam H1
Now... according with the specs, the MK2 has better focus because of the lens on the low beam BUT using the high beam you are using only the H1 in the MK2. In the MK1 you are using BOTH H4 and H1.
Results IMO theoretically:
MK1 better high beam, light from H4 is spread around making you see the environment quite good
MK2 better low beam because the lens focus on the depth of the road increasing also the brightness, less spread and good high beam (but less than the MK1)
Am I missing something...?
I'm talking just theoretically because I don't have instruments to measure the spread of the light (except the visual check) and the brightness of the light.
When I was talking about lumens, I was referring to Eg:
H4 3500 lumens (bulb)
H7 3500 lumens (bulb)
With the right instrument you are able to measure if in front of the car you still have that amount of lumens or in case of the lens an higher value because of the focus.
If I'm not clear enough please let me know I'm trying my best ?