Hi Zonaken! Well, there are a lot of different aspects as to grading? In my mind, its a little of both! 80 to 85% (of finish remaining) pretty much takes it out of any level of collectability? But, this could be wear, pitting, modifications, and alterations?.. That's why real nice parts lugers are worth more than re-blued shooters...

... Also, I think parts that are high mortality and often replaced have a lot to do with the overall grading, although it's hard to put a percentage on that aspect... It is all kind of a subjective hodgepodge of what you think most important, and what you can talk your self into or out of?.... For the most part, percent applies to finish, but it doesn't take into consideration of quality of finish, so it still remains that the best way to grade a Luger is by having it in hand, (in sunlight!) and as such, you can see for yourself! Oh my! Lot's to learn! til...lat'r....GT