I really love fenix lights but why do they continue to use AA cells in these high powered lights is beyond me.. I have bought a number of XML's and drop ins and find it is the perfect mix of hotspot with enough sidespill for road riding.. The P7 and MCE lights were great but they were too floody, best used if you were mountain biking but not great on the road.. With colleens numbers I may just try that xml MS head, I know i can buy that by itself from usa seller..