Lately I have been breaking quite a few props doing freestyle FPV. The Gemfan 6045s are nice and cheap, but they have separated mid flight on me twice and they break pretty easily. I've been pointed to the DAL "indestructible props" from surveillzone multiple times, but heard they don't have as much punch and efficiency as the famous HQ props. This was in reference to the DAL 6040s I believe because very recently they released the DAL 6045 props. Long story short I found the DAL 6045 props available from ReadyMadeRC who I've heard are really good. The price for a full set of props is actually cheaper than the Gemfans from Hobbyking. The big question is that I see both 6045 and 6x4.5 DAL props available. RMRC has a photo comparison of the two. One looks like a Gemfan 6045 prop (black) and the other looks like the classic DAL prop (green). So are both of these shapes as "indestructable" as the DALs Ive heard of? If so would the HQ/Gemfan looking prop be a better choice for efficiency?