Let me tell you I have seen a number of "professionaly built" houses with (nasty) mitred internal corners.
I have found its not amateur "V" professional that makes the difference.
Its can or can not give a S..T.
I think most on this board do give S...T.
Those who cant give a S..T wont make the smallest effort to do a better job for their own satisfaction or others.
Those who make the extra effort reap the rewards.
We should forgive doorstop he just cares too much.!!!!