I've been looking for affordable props without having to wait weeks for them to arrive. Value Hobby is a bit north from me and orders are just two days away. I'm really glad I found you Value Hobby. (Posted on 3/11/2014)
Using these on the CF2822 1200kv motors sold on this site, and they work great (3s battery). Motor always comes down cool. I could probably go to a 10x4.7 without issue, but these provide plenty of thrust.
They are pretty flexible, which has actually been a big benefit after 2 nose first crashes. haven't broken a prop yet! Not sure how much power is sapped by the blades flexing, but they produce plenty of thrust anyways. (Posted on 2/1/2013)