A good snippet from his is preamble "when profits are good, ask yourself what can you do to make them outstanding."
The 3 questions are:
1. How many distinct setups do you trade?
As with the Correlation of Market Movements your signals may correlate. Are you signals for distinct setups based on the same math? If so, and they're providing the same signals, then they should go. For example, you may find that the underlying math of several oscillators is similar enough that you only need 1 or 2 of them.
2. What are the outcomes of your largest vs. smallest trades?
Are you allocating for risk correctly?
3. Is the distribution of your long and short trades consistent with the market's direction at the next largest time frame?
This is another correlation question. If you break the market up into time segments and label them as up, down, and sideways, you can then perform a correlation analysis using that data against the trades that you took to see if you are trading with or against the prevailing market trends.
Let me expand on this last point and give you the tools. Using Excel and the =CORREL() function you can find out if your trading bias ties in with the market trend. You can do this on any time frame. I would suggest using 1's, 0's, and -1's, in two columns in your spreadsheet to represent longs, flat, and shorts.
Let's say that you're a day trader and you wanted to enter the data for 1 day's worth of trading. The market trends up in the morning, sideways during the middle of the day and down in the late session. In each of these sessions you open and close a long trade followed by a short trade. So your data looks like this:
Market You
1 1
1 -1
0 1
0 -1
-1 1
-1 -1
If you perform a correlation on this data you will see that it's zero. This means that your trading has no correlation to the market direction.
I will attach a spreadsheet to this posting that will allow you to enter figures and compare market direction with your actual trading direction.