I purchased the Myobelt XP to use during night trail running on very rocky and rugged trails that have tons of ups and downs. The lamp has served me well, as it provides enough light for me to move at about 90% of my daytime speed. If you will be using on trails with consistent footing, you should be able to keep up your normal pace. I agree with other reviewers that you can forget about changing the brightness with gloves on, however, while I am using it I adjust the angle and set the brightness as I begin, so it is not a big issue. If you plan to need to adjust it frequently with gloves on, it may not be the best choice. The long life that batteries have with this lamp is a huge plus for me since I use it for 6 or more hours each week. Bottom line, if used for running, I highly recommend it.

This light is quite bright and the batteries last. The controls on top of the lamp are a little complicated to use when it is mounted on your head and you are wearing gloves. Petzl could have done a better job on the controls. Also, the cord that runs from the light to the batteries is very heavy. I would have preferred a lighter cord and lighter connection between the cord and battery pack. I haven't tried any other lights with external batteries.

I just used my new Petzl MyoBelt headlamp on a 5 day elk hunt, and was very pleased with the functionality of the lamp. The battery life was excellent (never changed batteries), and the 3 light settings were helpful although I used the 'high' setting most of the time for visibility while walking through the black timber. My only gripe, a minor one, was that the switches at the top of the lamp are a little difficult to use, especially in total darkness. Overall it is a great lamp, and I would highly recommend it. The only reason I'm not rating it a '5' is because I haven't used enough other lamps to give it a proper comparison.