Trouble with z44 is its hopeless against other DD's, it will struggle against T7's in a gunfight.
I find it best to not fire all the torps in one go instead firing one salvo every 30secs or so, that way you have a better chance at starting perma-floods.
Kind of relaxing to play as you are not going to be knifefighting anything & generally staying out of trouble.
I play Yūgumo the same way as z44 - using torp-reload instead of smoke to allow better torp spam & get much better results due to the high damage of the torps.