We've been working through Shiva Krishnan's Frankfurt Strategy on TradingView today. Very simple.
EU Tues-Fri (not Mondays), trading before and after Frankfurt opening = 5.30am - 6.45am GMT or UTC + 1.
Possibility of Calls from 5.30am up to the hour - 1 x 30m at 5.30am and 1 x 15m at 5.45am. Then at roughly 6.10am you can take a 30-40m Put.
Use RSI 7 for best entry point (around/above 70 or around/below 30).
Backtested 12/12 this last week.
Friday 22nd July 2016 example -
Shiva's original video -