You basically can't fail, unless you're way to slow, or can't build one wheel within tolerance. I did pass, and particularly my wheel build was good.Nice write up. Love perving at bikes being fixed and all the associated tools/equipment. I wonder how many cyclist actually own a JIS screwdriver or actually know they exist vs. Phillips?!
I'm assuming you qualified with flying colours?
A good steady hand and nice Philips is fine, but why not buy the right tool and own a JIS, particularly if deraileur stop screws are starting to round or corrode.
Probably in the grand scheme of things not many will own a JIS