With narrow lanes and lots of turbulence in our pool, I try to find ways for our swimmers to get in good quality fly sets without having to dodge teammates, do 1-arm strokes, or have to worry about getting hit in the face. This set accomplished all of those objectives AND helped us deliver some fast performances at practice. On the 25s, we were able to go :10 apart. On the 75s, I would start the second heat when the first heat had finished about 60m (SCM pool). For the 125s, the second heat would begin as soon as the first heat had finished about 110m. This also produced a “chasing” effect that encouraged swimmers to finish their last 25 fast lest they get caught by a teammate in embarrassing fashion.