how do YOU cut it when doing the inside profiling method?
Do you cut it straight then use a coping saw?
This way you will still need to profile it except the half moon profile cut...
Before cutting the piece to size, mark a straight line down the skirting to the correct lenght you need. Now find the center of the halfmoon shape and mark it with a centre punch and using an auger wood bit of the same size of the halfmoon drill all the way through,then cut down the line...BINGO! no need to cut out the profile as its already there and a perfect fit to butt up to the other skirting providing your coping is good for the two pieces ie the stub above the halfmoon and the curled lip below the halfmoon.