First off, let me say that I have nothing against powerlifting (although I don’t like the current use of suits in the sport) and I use every type of squat imaginable (varying depth, stance, and tempo). I just want to add that the original argument regarding powerlifters was started because they were held up as the standard for power development (at least as I read it). I think an argument could be made for doing that for STRENGTH development but certainly not POWER development. Despite the name of the sport and the use of ‘speed’ in their training, the training of power lifters is really focused on strength development with a sprinkling of low-end power development. Even most of the power development work that is done in powerlifting has very lower power outputs compared to other activities like OLing, jumping, sprinting, etc. Can their training be valuable…heck yeah. Should it be regarded as the gold standard for power development…almost certainly not.
Mke, I agree with what you say above, I would not state that power lifters have the market cornered on genrating power output. Actually, the original point of the discussion was supposed to be about the benefits of ATG squatting vs parallel squatting as they relate to explosive starts etc. Also, as I stated in my long post above, ATG squats, to my knowledge have never been statistically shown to be better than parallell squats at improving functional strength and power as they relate to sprinting.
I also agree with your use of varying depths, stances and tempo. I would also include cleans and plyos in the mix. However my point remains that I have seen nothing to convince me that ATG is better than parallel for achieving training the goals that most on this board are after.