In Mist & drizzle on the road bike yesterday, the P7 on the helmet was a pain, wanted to move it to the bars as glare and reflection directly in your eyes is too much. Also on clear descents the flood doesn’t penetrate far enough for a road bike, but perfick on the MTB.
A Cree X-Re based light such as the fenix tk-11 would definitely be better for that as more focused, less flood. DE does have a cheap one for $19