User blog comment:Hayashi H/Fall 2015 Fleet Setups/@comment-11937523-20151128114428/@comment-26486243-20151130083832

If you intend to get Harusame, going that path will also have a higher chance of getting S-ranks. The accuracy difference will be smaller and the evasion difference will be larger than in these tests especially if the fleet is sparkled - as in order to study the effects on accuracy and evasion people normally use red-morale ships.

Both methods are RNG-dependent really. The Eva route rolls RNG to evade and reduce Cut-in activation, the offense route rolls RNG to target the correct ships that pose a threat before they fire. If the first fails, the result is getting hit by a cut-in anyway (and probably getting taiha); if the second fails, you'll shoot a ship in slot 6 while the Flagship Transport CIs your ship to taiha. Both approaches have their drawbacks.