BOTH, all the time. What Dave is stressing is his usual the beating down of Dogma. This time of the PWO drink. That people have made this PWO thing so damn important that they seem to not pay attention to pre w/o. wha you have prior to and during which are as and most likely more inportant.
Simply having enough of the right fuels in you to have a great w/o. If you dont then you wont perform worth a damn and hell no need for a PWO shake. So he's really not sayiong DONT have a PWO Surge but that one prior to is as and most likely more iomportant to those looking to pack on Muslce.
I know being freinds with Dave we talked abnoput this varuious times prior to this article coming out. It had me begin experimenting to find what was Optimal for me. I found one hal;f hour prior to my workout I mix a full 2 scoops Surge in 32 oz water. down half of it,. the during my warm up sets etc a drink the rest. this give me AWESOME energy etc, for my w/o. Last about an Houtr and I can then follow the w/o with more Surge or I opt for simple cereal and Grow! then an Hour or so later have a big meal.
Hope that helps,
Experiment and Find what works for you.