I try to precut all that I can as well. By coping the moldings, in the corners, this is very easy. Each wall's crown is extended, at one end, behind the coped end of the adjoining wall. With paint grade crown this is very simple. Other times the crown is prefinished hardwood though. That is when each piece must be cut more deliberately, checking each pieces fit, prior to cutting another. In my home I love finished milwork, but in other peoples homes I like paint grade, 
Seriously though, in commercial millwork you are quite often installing pre-finished trims & millwork, residential also. In that case joints & nail holes must be kept to a minimum, no caulking allowed. Usually a little touch up is required here or there, just to fill brad holes & such. The finisher is my friend,

Seriously though, in commercial millwork you are quite often installing pre-finished trims & millwork, residential also. In that case joints & nail holes must be kept to a minimum, no caulking allowed. Usually a little touch up is required here or there, just to fill brad holes & such. The finisher is my friend,
