Swing setups for possible gap ups

I have found this strategy to find possible gap ups.

set up
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On Hourly Chart
Plot EMA 200 ( in the above chart it is blue solid line )
Add VWAP , set weekly setting
Add EMA , set period to 9
Change the source of EMA 9 to VWAP

Lets call this ema9 setup as EMA9VW (in the above chart it is purple line)


BUY
====
EMA9VW is above EMA200
when the price is crossing up EMA9VW
set the stop loss previous pivot low
Exit when gaps up (Take profit )
or wait until price crossing below EMA9VW

close when stop loss hits


Let me know what you think of this idea ? if your feedback is greatly appreciated to improve this startegy ...