Weis Wave with Heikin-Ashi Trend Trader

FX:GBPJPY   British Pound / Japanese Yen
Hi all,

This is my first post on Trading View so I hope I lay this outright.

What we have here is Heikin-Ashi candles with a Weis Wave indicator which triggers buy and sell signals. The strategy works best on 5 min chart.

The Heikin-Ashi is important for the volume indicator to work properly in this case

I have had issues where the entry and exit price of the trades changes due to the issues of backtesting with Heikin-Ashi so...

Does anyone know how I can stop the entry and exit price changing in a backtest? Any comments for constructive discussion would be appreciated.