Hey OP,
Clear up your inbox.
____
EDIT:
I'm all about servicing my own stuff BUT there is top of the line Sig Armorer in Mississauga, Ontario. Where are you located?
My personal experience;
Not only does he work for MD Charlton Co, SIG Importer for Canada, but when he installs things like triggers, etc... he doesn't just drop in the kit pieces but will actually polish/shave off as needed so everything works together smoothly.
If you need his contact info PM me.
Cheers,