Third, if there's provision for it, fit a deeper fence face.
The greater surface area running against the edge of the work
will increase accuracy and allow you to apply pressure lower
down using your non-working hand. This helps to keep the plane
upright. Occasionally, you may find the work is such that
the deeper fence fouls the bench top. In this case, you'll
have to do without it, but otherwise, it's worth training
your muscle memory while you're still practising. If you need
some extra help, you can fit an upright indicator (such as
a piece of dowel) into a hole in the fence face; this exaggerates
any deviation from the vertical.