What is up with people doing insane amounts of these things? Be it regular men uchi or haya suburi. It is important to do them correctly. We do 30 or 40 men, sayu men, haya suburi during streching. Then on to warm ups, kirikashi twice, 10 men, 5 kote men, 5 kote do. Split the dojo in two lines, 3 motodachi each for each line. Four or 5 trips through the motodachi. First round men, second round kote men, third round kakarigeiko. Form is much more important than numbers.