Ive done probably about 20 of them already. Most worked, some didn't. A few after market levers didn't work. I have an asv on my bike and it works.
Set up is key. Takes a bit to adjust and get it right, but once done it's a 100% noticeable gain.
I tell people, there's nothing to loose.
It's a mod that you can just undo and go right back to where you were. The original hole is still there and un touched.
I use it on both my bikes.
RTC levers used to be the norm. He did it for years.