Boatman, so does your capital required increase, since you are holding more positions and thus your return decrease? Or are you getting the same return for more trades? If your your % return on capital does not decrease than definitely go for more trades. If your % return decreases than I would just use more margin on the system which trades less....unless there is an obvious concern over the system taking too few trades.

I don't believe the difference between 12% and 15% drawdown should be your primary concern.