Are off hand tools still useful beside when they have better stats then the tool currently being used? I've noted alot of the outdated recipes had different results depending on Main hand or Off hand

But besides when your off hand tool has better stats does it still have different effects? Does the off hand HQ still mean a possibility of more of an item (like Ingots etc)

And Main hand still determine HQ +quality? (Ingot +1) Or is this also outdated?

Did some searching but couldn't find an answer or info that didnt seem to be a few patches old atleast.

Thank you