If it's got the EMS logo screen printed it can be an '04 or 05. Depends on the bar set up and the color pattern on the wing. The EMS branding was the result of EMS's attempt to get into the snowkite business after seeing how successful Stormboarding (the local Ozone dealer at the time, based in Burlington VT.) Was with thier Kitestorm events. The US distributor came to the event at some point and made a deal with EMS in hopes of selling more units I guess without telling thier already established dealer. Another case of brands going for quantity, not quality and putting thier faith in a big sale from a buyer who knows nothing about what they are buying.
You can't be much use as a snowkite dealer if you dont snowkite. Since EMS didn't really know anything about kites or snow kiting and had nobody in the company that did, thier effort to get into snowkite failed. Resulting in the liquidation of thier inventory of kites, mostly fixed bridle Samurais (still have our 2m) and a few Frenzies at cost. Maybe even below cost when you factor in the screen printing. Almost everyone who's been a committed snowkiter here in New England has owned one of those EMS kites. Some still do mostly for sentimental reasons. The 7m was the sweet spot.
Historically the 5m Frenzy 04-05 have been some of the fastest kites on snow. They generate a ton of grunt and move pretty zippy. The safety works pretty poorly in 30kts plus asw the brakes can still drag you after the hat is pulled. That kite is tougher than anything on the current market. Uber tough fabric, assembled to take a beating. Good for Ozone for being the first company to really embrace the snowkite segment and stick with it.