Spraying Time Comparison Between a Fuji, 4 stage, 3 stage, and 2 stage system

I ran a time comparison check between a 4 stage, 3 stage, and 2 stage systems, spraying latex thinned with 20% water on an average sized kitchen cabinet door.

4 stage system took approximately 13 seconds
3 stage system took approximately 22 seconds
2 stage system took approximately 37 seconds