I checked on my JDM import after I had fitted the mirrors, due to lots of discussion. Sure enough, as per usual with Alans info it was spot on.
Bahahaha!
I think the biggest thing is making sure you use the S30 mirrors and not the bluebird style, I originally had the bluebird type with the shorter stalk, S30 type will go on when it's back together. With the longer S30 stalks, There's a bit of difference in how far they sit out visually from front on.