Killian has been great but let's be clear here Gray has beaten him handily in uphill event in Norway. Also Gray and Jim are at disadvantage in thay they can be tested and subject to real testing not skimo testing as kilian has done. Hray has been tested in and out of competition more than kilian by the most known and serious tested companies which can easily be looked up. Kilian works with quartz which doesn't in fact test and ban athletes for doping, they claim they are a health organization. I would trust performances by Gray or Jim over Kilian anyday. Just sayin