Hi Eric,
The charts I shared are the backtest over the last 6 months using FTMO historical data. I like to backtest for at least 1 month before moving to a live account. However, you can use the amount of backtesting time that works best for you. It is my opinion that the longer you backtest the more accurate the backtest but using too long a backtest period can cause the market conditions to change while you are backtesting. This is why I choose 1 month for my backtesting.
It is my opinion that the best way to backtest is to use the same prop firm as you are going to use in live trading so the historical data is the same. Using other brokers for backtesting will give different results because their spreads will be different and they may or may not charge commissions and the commissions could be different. So what I do is to use the lowest cost live prop firm account to do my demo testing and I use the smallest lot size for the robots (0.01 lots) I am testing so not to have much drawdown.
Alan,