I've been to a few front sight classes over the years. I've also been to Gunsite classes, both pistol and rifle. The Gunsite classes are clearly better, more individualized instruction, but at a much, much higher price. I find the FS classes to be a good "refresher" course for very little money, and for that, or for a new shooter, its a good deal. As for stance. I do recall them being a bit rigid about the stance of the shooters years ago, but that seems to have changed. If you are a beginner, and that's clear to them, then they will try to keep you in line with their choice of shooter stance. But, for any shooter with more experience, they are completely fine with "shooters choice". A much better balance, in my opinion.