Heaver talks about the stresshog and his strategy in the post-game interview:
http://teamcovenant.com/blog/video/paul-heaver-x-wing-interview-ffg-worlds-2015/
He said it is the best Rebel ship and should be included in every build. His strategy is to fly it in the back of his formation because he knows his opponents with prioritize it as a target. This implies a sort of Biggs effect, then...