As you do more research you will find that people do like to change some of the settings on the GPS Forex 3 Robot to be different from the ones I have provided above.  Below is a description of what the most important settings do to help give you a better idea of what to expect if you change a particular setting:

• Pairs – When you download the GPS Forex 3 Robot expert advisor you will notice there are four files in the download.  Each of these files allows the expert advisor to trade a different currency pair.  GPS Robot support and many other users recommend that you only run the EUR/USD pair to achieve the best results possible.
• Use MM – This setting automatically adjust your lot size based on the amount of capital you have in your account.  With the GPS Forex 3 Robot this generally equates to around $100 per .01 lot size.  I would recommend keeping this on “true”.
• Auto Analysis – Searches for the best times to make a trade based on market conditions.  I would recommend keeping this on “true” even though it will seem sometimes the GPS Forex 3 Robot does not seem to trade as often it is the safer setting.
• Trailing Stop – I would keep this on “true” because if it is off and the trade starts losing there will be nothing to “stop” the loss.  
• Reverse Trade – This is set to “true” with a value of 5.9.  You will definitely want to keep this value on “true” because if you turn it off there will be no reverse trade to get you back into profit after a loss.  For example if you make a trade and the market goes south the trailing stop loss will end with a loss after the trailing distance of “6 pips”.  This is when the reverse trade will kick in and make a buy to recover the loss that just happened.  You can set this value at a higher value than “5.9” to recover a higher value than the “6 pips” you just loss.  I have mine currently set on “6.5”