NZDCHF: Interesting imbalance

I suspect it's time for the NZD to catch up with the GBP vs the Swiss Franc as you can see in this chart.
The trade offers a great risk/reward ratio if it works.
I'm entering a long position now, and looking to scale in if possible, using the 4h chart as a guide.
The rate decision will bring intense volatility, and might fuel a strong rally.
Cheers,
Ivan.