Hi, sorry for late response, didn't see your comment.

No, I've not backtested any other pair for a simple reason: being a grid system, backtesting big timeframes always take to a loss. This is because grid systems are great in ranging markets but disasters on trending ones, so my advice is:

 - focus on a ranging pair (as of today EURUSD is a good one)
 - setup an 800 points grid, 0.03 lots and 1.3 as lot multiplier, TP at 800 points, SL at 2400, T1T2 at 600 points and no Trailing SL, Max 3 orders

Edge this pair with another pair in opposite direction: for example, if you are buying EURUSD and want another pair, try selling GBPUSD; in this way a strong dollar will cause a loss in EURUSD but a gain in GBPUSD and in case of retracement you will profit from both pairs.

I'm forward testing this type of setup on my own account and results are good.

Strx