The P7 on medium is brighter than the Fenix on high, while lasting several times longer and costing significantly less.
And a
cheap Q5 thrower on medium should easily outthrow a P7 on high while lasting several times longer, costing significantly less, and letting the rider see waayyyy down the road
That might be a good combo,
sharkey00, a P7 with a wide "fog light" beam plus an inexpensive thrower for a "driving light." You can adjust brightness levels to bias the throw/flood mixture to your liking, they both take the same batteries, and they're not likely to both run dead at once
Another option is to helmet-mount the thrower, which can be really useful (especially if you have deer overrunning your commuting route like I do).
I know when I'm out on the highway, it's nice to have long-range lighting. Last night I had my DBS on my helmet, I aimed it up the road, and it illuminated a reflective road sign so far away, I decided to measure. It turned out to be 1.3
miles to the sign in question (pic below). And that's with the lower-throw textured reflector, not the smooth long-throw reflector
for road riding, throw is your friend