Caveat: Overuse of the extreme open stance FH can be stressful to your hip flexor and, possibly, your shoulder. It might take a few years to manifest itself, but the hip issue is an important concern. I'd advise a good mix of neutral stance, semi-open stance and the occasional extreme open stance if you want to improve your chances of remaining injury-free for years to come.
Every tool is a weapon -- if you hold it right. (~Ani DiFranco)