Solid light in the dark + a second flashing toplight on the helmet if possible.
Drying the day, both sets flashing.
A flashing toplight has definitely saved me before as it’s flashing where your are looking so people pulling out of side roads see you, has definitely made a few drivers jump!
In the dark you need that fixed light for judging distance etc as you said.
For me:
Solid light in the dark + a second flashing toplight on the helmet if possible.
Drying the day, both sets flashing.
A flashing toplight has definitely saved me before as it’s flashing where your are looking so people pulling out of side roads see you, has definitely made a few drivers jump!
In the dark you need that fixed light for judging distance etc as you said.