Something I've noticed after testing this on and off for quite awhile now.
While it definitely increases raw kh/s and makes the gpu work harder (based on gpu temps at same clock rate)
- the reality is, it does nothing for WU
Long term WU does not change compared to without these tweaks.
I am not knowledgeable enough to explain why but I can pretty much report this as fact.
So if it makes you feel better to see higher kh/s and use more power and run gpu hotter, this helps.
But for actual real-world improvement, this does not seem to do much.
If someone has proof otherwise, please share your WU improvements?