HP should 600 or greater for less than part because if you are bursting long unsupervised burst will cease when cows get too high of a level.

Also SP < 110 Sake or Grape syrup(If Xaolan cannot stonewall at least get enough SP for next round).

Cows at beginning will not be stonewalled because of full health. Make sure all Cows have hp Recovery low 50% or less.