available in the SureFireThing MasterClass Manual available to members only.
from the chapter:-
we repeatedly state, key to long term day trading success
is the control of risk. One of the easiest ways to control
risk is to tightly select your position size so that at any
one time, only a very small fraction of your capital is actively
at risk. As you start to day trade, you will begin to realise
that you have a unique, personal risk tolerance level. Some
day traders appear to have no fear, some are too timid to
pull the trigger at all. A wise day trader falls somewhere
in the middle. Determining your personal risk tolerance level
takes a little time, and a good place to start is..."