Oh you should see the props from my Phantom. Over the time I've had it I've replaced the props several times and the ones I'm currently using are full of bug guts. Maybe it's the colour...I dunno.
I have two H's and a Mavic, The word on DJI blades for Phantoms and Inspires is recommended to replace them after 10 hours of use as they will start to bend and lose their effectiveness.
I still have my original Yuneec blades, however, I did replace them on the H after about 6-8 months. They were working OK, replaced them for peace of mind and not wanting to take the risk. $10 is cheaper than $1000.