Gay ran with a VERY illegal wind–+4.1, so the numbers are going to be affected by that, but he still maintained his MaxV through to 70m (if you can believe the 0.80s) and held up to .83s through 90m.
Remember who is coaching Gay–Jon Drummond. He is well connected to the HSI camp, and got to his 9.68 by using an extended drive phase. There are several comments to this effect on the web. It is the SAME race modeling.