I took my new Donner Parties to my local shop to get them mounted, and we had a long discussion about where to mount them. I told the owner, "I have asked Moment what the center line represents, but they have been pretty vague about it, so mount them at -3cm, wherever that may be, but you can use the line as a sort of guide." He said that would be fine and asked for Moment's number so he could call them and figure it out.
I pick them up and I was in a rush and didn't notice anything at first. The guy who mounted them said he did not call Moment. I measured everything out today and they actually mounted at -6cm.
What should I do? I could get them remounted for free most likely, but there goes all resale value.