I ride with seat height of 77cm measured from the center of the bb to the top, of the seat, which was easily obtainable and very close to where he rode it. I had the seat post flipped forward with seat back most of the way. I also used a 110mm stem that seemed to be a fairly good fit for me. The problem I had was how low the front end was. I can ride pretty well with a 10cm drop from the top of the seat to the top of the elbow pads on the aero bars. To acheive this I had to use a ridiculous amount of spacers. In essence making it look silly having that tall stack. I realize this is not the most aggressive drop, however this is what I find comfortable and still allows me to breath good without wrenching my neck.
Is it just that the front end of a P3 is too aggressive for me. Would it be possible to acheive this poisition on a different size maybe?