Sorry, but this is probably the worst thing you can possibly do. Not only do you uselessly mar the surface of the stud, you actually compromise it's integrity by doing this. No matter how careful (or 'good') at such an act you are knocking tiny lil metal shavings loose. AND you cannot torque a head stud in such a matter.
Seriously, GH? Seriously?
First thing you do is put a rage over any motor automotive or what ever when you have the innerds exposed NO MATTER WHAT.. Even with your Nuts plan.
Those ubber cool upgraded studs can take way more abuse then you worded it for... My instructions never implied in any way wut so ever to mare his threads where the installation nuts go...
I can do it been turning wrenches professionally for a living for many years. Could do this when I was a child that is when I got started wrenching if I wanted my stuff to work I had to learn. . I don't normally suggest anything I cannot do. I also red loctite them in as I will not be taking them out ether. I am confident enough not to damage any thing and can leave them installed.
You are prolly right in one thought how ever on these cheap motors that proper torque should be endeared at every aspect. As perhaps somebody could tighten there studs unevenly. Which in turn over a few heat cycles could settle the jug and casing different? Was going to happen with two nuts no doubt any way.
Last how about clumsily loosening the nuts and having loose studs again didja forget about that one with only 100 or so inch pounds to hold things still?
I also should have said more clearly that Chinese tools like their Vice grips are also junk. I use USA ones. No I don't get these metal shavings you are claiming ever ether. It obviously takes some competence to use any tools properly.
I use Copper Koat head gasket dressing star washer lock washers and ditch the acorn nuts as they tend to bottom out on some installs before tightening the head. I avoid a loose hanging rattling oscillating exhaust pipe. Everybody over looks that one. This leads to the why do I have to keep re torquing my cylinder head ditty and if not it just is not friendly to the thought of harmony.
Not to mention the vibration felt through the bike from the occliations.
Guess what these do?
1/2" Drive Stud Extractor
This is used on a regular basis in professional wrenching and yes the stud gets reused. Talking about some ubber foot pound torque more than a china takes for assembly and some mean torque even Vise Grips cannot usually do.
The little ol china only needs about 100 to 120 inch pounds.. A nice pair of Vise Grips properly used will never ever slip in any way at all and are more than capable of handling this task.
http://www.cj-3a.com/DSC01942.JPG
Just like bad Vise grips there are bad ones of these as well....
http://www.cj-3a.com/DSC01942.JPG
Really