Christian McArdle wrote:
tell that to the old fellas that cut and perfectly fitted the 7"
skirting in our old house which was built in 1901 LOL

Yes and on sixpence a day, they could afford to spend time cutting by
hand.

However, it is worth spending some time scribing and cutting internal
corners, rather than mitreing them. It looks better that way.

if, and only *if* the walls are at 90 degrees, which is rare ime.

even using one of these

http://www.screwfix.com/sfd/i/cat/59/p1907059_x.jpg

and a mitre saw you will end up smearing a finger full of gap filling adhesive
and/or wood filler into the join and having to finish it which takes more time
than it does to do it the olden days way.

YMMWV