5. Flexibility in Strategies
Not sure if I interpreted this correctly, but anything to do with jumping from one strategy to another just shows that one hasn't polished the strategy one is currently using and this is a sign of gambling and experiments!
Otherwise I am leaning towards the technical analysis side of things and the only time I get to use fundamental analysis is when news is coming out and I stay away from the matkets as the volatility is high during these times.
What are the benefits of combining fundamental and technical analysis?
The only benefit I can think of when combining the 2 strategies is them acting as a confluence , though technical analysis will always be a step ahead

Both fundamental and tech analysis are not strategies by themselves. It is just different ways of getting and interpreting market data while the trading strategy may combine not only both of them but also include sentiment analysis or any other things you want to use (even tarot cards if you want).
IMO, there is no other way rather than combining multiple types of analysis if you want to trade successfully on a distance. None of the professional traders is sticking to a single type of analysis.