Jeff is right. Just service the bearings with moly paste, use new o-rings, and keep the pressure washer away. The o-rings on the newer bikes provide a very tight seal. As an experiment, I weant a complete season(March through November) on my '03 with no regreasing. No problems, but I usually do a mid season service anyway.
BTW, Huskys come with Zerks. They also come with a real crappy system for keeping crud out (needle bearings with tiny built in seals). When you grease a Husky through a zerk, its eaisly purged past the seals. I doubt that would happen in the GG with those o-rings, without blowing them out.