User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-74.240.186.155-20120109210030/@comment-3062343-20120110075108

Yes, Bracchi's armour (both high and G-Rank) give the challenger skill. They also both have bombardier, and according to the Japanese wiki, the Slime status is multiplied by 1.2 when bombardier is active.