An alternative strategy for AVGO is Selling a bear one week put 40/20 delta just before earnings and holding for 2 or 3 days post earnings.
seems to yield over 90% success rate . with average returns of about 20%. Am trying it today. Will report results in a few days.
I haven't got the time to play with the OA backtester, but you are limited in the tickers you can backtest which correspond to the OA trading strategies (ETF and the most liquid stocks). CML doesn't seem to have that limitation. I believe OA backtester has the calendar but not designed to play around earnings.