Part III is out today – Part IV still missing. Citiation:
Take home message: The front squat is easier and faster to teach and load aggressively and gives the beginning athlete a self-correcting lesson in basic squat mechanics. The back squat has more risk of falling into in poor squat posture than the front squat, uses higher loads and I have found less people get the correct technique within an adequate amount of time than with the front squat.
So it is an easy decision for me, I prefer our squats to be performed in a front loaded position.
I have just read through Rip’s Starting Strength book. His view is that BS and FS are just very different exercises, and that FS does not very much for your posterior chain