I took some beam-shots of the L6 5A compared to the S70. Same camera settings for both shots.
Distance to tree line is 190 meters.
L6 5A on the left. S70 on the right.
Low:
Medium:
High:
Turbo:
Turbo Enlarged (L6 Top, S70 Bottom):
Personal thoughts:
The mode spacing on the L6 is incredible! There’s a big noticeable change of brightness from one mode to the next. The S70 mode spacing, while adequate, isn’t too great now that I have seen the L6.
The low mode on the L6 is 100x more usable than the “low” mode on the S70. The L6 has a beautiful low.
I prefer the L6 beam. It’s a pretty perfect mix of flood and throw. Spill just as bright as on the S70 with a tighter beam.
The 5A tint is outstanding, and visually doesn’t seem any less bright than the S70’s cool tint (I imagine the S70 is a higher bin too).
Something interesting that you can see in the pictures is that bugs were more attracted to the cool white light of the S70 over the warm white light of the L6.
Also, you can see how the warm white tint of the L6 penetrates haze so much better than the cool white tint of the S70.
In summary, the L6 beats the S70 in my opinion. 
And it is SO much easier to handle than the S70! Perfectly balanced, and amazing grip.