I would probably ask "HOW would I do that?"
If an answer to that question couldn't be provided, I would ask, "WHY would I do that?"
An answer to the second question might shed light on the first.
Why = to make some money.
How = well, let's look at what is already stated.
1. Trade first 30 min
2. Pick instrument with adequate range.
3. Set your risk parameter per trade.
4. Trade
It doesn't get much simpler than this. Can you point out what issues or problems you see with this?
