Some helpful (but not game changing advice) regarding running the curve and training

I have seen people here training and even running time trials in the inner lanes, even from lane 1. If you run 22 seconds in the 200, you are at a disadvantage because at that speed the sharp curve slows you down. Even if you run 24 seconds +, running on a tight curve still puts you at a disadvantage because your start is unnatural, you have to be really good at starting at a curve to set up your drive phase naturally from such a sharp angle.

Fun fact: Many American middle school and high school tracks have a lane 1 curve of 100m. That means that even LANE 4 (112 m curve) has a SMALLER radius than a pro track from lane 1 (115m). And you know how much pros hate lanes 1 and 2. Lane 1 on a professional designed track is equal in radius to Lane 5 on a an "amateur track".

In practice, if you're running at 90 percent top speed, just do it from the outer lanes if it is safe to do so. It will feel easier and you will probably be faster.