At the 2010 Summer Outdoor Retailer show, the yearly pilgrimage for gear obsessed outdoor store owners and buyers, Mad River announced the release of five new canoes. The first two ultralites weigh in at 45 lbs and 43lbs for the Explorer 16 KX Ultralite and the Malecite KX Ultralite, respectively. They range in price from $2,749 to $3,089 depending on the options, like wood gunwales. Both feature resin-infusion w/ something called custom MRC core system. If the MRC core system features a molded-in bunny, like shown in the picture, we hope it doesn’t make it into production boats. Resin-infusion results in a layup with a high fiber/resin ration, which means…