Do we know exactly what the last patch changed on weapons?
Apart from the boom hammer, I really don't know for certain what else changed. I did read that the pizza cutter still have the same stamina usage but it stuns less than before.
Well there doesn't seem to be anything official on what was tweaked but fextra has some "unofficial patch notes". Mainly seems to be lowered stamina costs on weapons and I don't really think that the Whirligig Saw was nerfed. Feels as good as before the patch.
edit.
Which of the new DLC-weapons is best for 50 strength / 30 Skill build? Just entered the first DLC-area.
Whirligig Saw and Beast Cutter. Both can be found in the first area. Also Amygdala Arm has good Str scaling but I think the moveset isn't that great.