Fogive me if this is a very nubish comment but k...well i've heard how carving and hollowing is bad and all and i understand why, but isn't it alright if like its square...someone plz help, because im confused...when i go to make a hole in a wall for a door do i ...carve? ..delete the wall and make lots of brushes...? ..well..i just need to know to properly use the carve tool..T.T