That said, I always have Foxtech props on hand for testing new configurations, etc. I consider them more expendable. It's good to have expendable props on hand. Ask me how I know.
I started my copter saga six years ago, first three flying singlerotor 6-700 size helis. That took some learning in the noble art of flying. I´m not an expert but would not like to bee without those many many hours of flightraining. And al them times the copter just got hit by the always unpredictable mother Earth ;-)