Hitman, if your strategy does better during the day than afternoon, then by all means it makes more sense to trade more size in the morning than afternoon, or perhaps to not trade the afternoon at all. Using different strategies for different times of day is a known concept. You've mentioned several times on how Mondays are difficult days for you. Why not just trade 4 days a week, mornings only?
Also, nowhere in Stockk's journals does he say "volume & momentum will probably be light this afternoon, plus I am a better morning than afternoon trader, so I'm going to take it easy". What he does say is "I am up $595 now, I am going to take it easy for the rest of the day as I didn't want to give back any of my profit."
Regarding volume & momentum in the afternoon, I feel there is plenty of volume & momentum in the afternoon for most trading strategies. How many times have you been bailed out in the afternoon. Like on 11/19 when "Horrendous open bailed out by solid afternoon market movement". What if you decided to cut your size on that day?
Also, both you and Stockk have mentioned trading less size after consecutive days losses. My comment is that if you have confidence in your method, then each day is a new day and the it doesn't matter if you've won 10-in-a-row or loss 10-in-a-row, unless you're doing something different (i.e. not following your method).
I've also seen you post that you will trade less size or play more defense than usual (i.e. use tighter stop losses) if you are approaching the end of a pay period. Again, why not just trade your method whatever it is regardless of external factors such as how much you are up or down that day, week, pay period, month.
If your method works, it works. It your method requires a certain about of momentum & volume then don't trade during periods where those factors are not satisfactory. But to simply pack up for the day or trade very small size doesn't make sense to me, which is why I am asking stockk these questions regarding psychology & methodology in his trading.