The NeuroShell Trader Professional can optimize the contribution parameters of the Nets when you use the Nets in a trading strategy or feed them into a Turboprop 2 neural net as an input. Note that you can optimize the lookback period, the lag period, and even the lookahead period! Of course, you can also use the optimizer to find optimal values of all parameters of all indicators in the inputs. The same is true for any indicator which is your output (the actual). So for example, if your actual output is momentum of the open, the optimizer can determine the momentum period that is optimal.