Here is a useful manual backtesting tool. Auto-backtesting is good but manual backtesting has its place as well.
It is an EA which allows you to backtest trades with a single click using user-defined parameters based on ATR.
Trades will be "placed" and wins will be shown as a green line or losses as a red line.
The EA will keep track of total trades, total wins, win %, profit % and allows the user to export the backtesting data as a *.csv file.
Lightweight, easy, intuitive and very fast to use; basic instructions are located within the EA window.
I did not make this EA. It was created by a member of a forex community called "NoNonsenseForex" who base their TP/SL strictly on ATR. Very useful if you do the same.
The only thing it's really missing is the ability to account for trades which would have kept running, or that you could have stacked/pyramided into. It does a very good job at very quickly manually assessing the efficacy of a trading system though.