It usually comes down to neck strain but with my new position I feel much more natural and am doing all my trainer rides in aero now. My "current" FTP of 308w was set through a 20min test with about 6 minutes in aero and 14 minutes sitting up. I recently did a 3x30min workout @ 262, 277, 290 for each 30min, completely in aero which I think shows huge improvement for my power output in aero. Here are some videos I just took of the slightly modified position:
Benjamin Deal - Professional - Instagram - TriRig - Lodi Cyclery
Deals on Wheels - Results, schedule, videos, sponsors
Benjamin Deal - Professional - Instagram - TriRig - Lodi Cyclery
Deals on Wheels - Results, schedule, videos, sponsors