I still think the calculated risk is a little low, you are essentially expecting a Return/Drawdown of 8 (Nothing wrong with being optimistic though!). But your time in demo trading will give you more of a feel for what to expect (which is one of the reasons its so important).
I would definitely recommend you keep close track and record these important parameters in your demo trading to build a ‘feel’ for things (which really only comes with time and practice). Don’t be too surprised or disappointed if your drawdowns are more than expected and you can adjust for the next month with new insight (continually :-).
Also you say you are always searching for lowest drawdown, just make sure this doesn’t mean lowest profits also! The return/drawdown may be more appropriate I think.
Happy trading, looking forward to seeing upcoming results and discussion!