That's good info blackbullet. I followed your example by adding the 2.5 mm and got pretty close. I've done some high rpms on the rollers and it feels pretty good but I need to get on the track to get this dialed in. I'm sure I'll be moving things around as I learn more about the track.
I run 172.5mm cranks on my road bikes and I feel like I have a little more power available with the longer cranks. I've read that the shorter cranks keep you from scraping the pedal on the track but I can't imagine it would make that much difference. I would prefer 172.5 if others run that length. The track in Frisco is 44 degrees so would it vary by track?