Hey guys -
To be fair, my exact quote was 'low 2:20s' not 2:20. But my three HIM from last year were 2:21-2:19-2:21. This year's races haven't been as good, but not really for equipment related reasons. Even then I had a pretty terrible ride at IMSG and still snuck under 2:30 on just 176W - that is not a fast course! I don't have tons of racing data from before I got my Dimond, but I did a couple HIM in 2010-2011. One of those was 2:28 on a decked out Trek Speed Concept and was on the same exact course I rode the 2:19 last year. Different power meters, but power was very similar, actually slightly higher in 2011. I have paid a ton of attention to details . . . better tires, ice chain, giro shoes, I'm sure those all add up.
re: pad height . . .I did an ERO session last year and when we tested going lower I did not get faster. I would like to go to the wind tunnel and re-test that or get one of those new notio gadgets to fiddle with it, I agree it seems l could go lower. That being said, I have back trouble already -- never when I ride, but if I ride too hard my back freaks out on the run -- can't imagine going lower is going to help with that.
Here is a pic of me racing IMLP last year as requested. I did 5:16/5th AG there on 162W (including a 2-3min bathroom stop). I admit it doesn't look very awesome compared to a lot of people here, I can never get my head position to look great in particular.
Dimond Bikes Superfan