One thing you may want to do to insure it is mounted square is to make a very small V cut (in the waste area) with the point of your skew. Then stop and check it, very often only two corners will have a notch and you have to adjust the mount slightly.
In the article linked by Mike H., the author shows the bevel of the skew perpendicular to the work, not the handle. You can also use a spindle gouge with the bevel perpendicular; the curvature of the blade will clear away the waste wood.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety. Benjamin Franklin