One arm delaminated right in the center later (but nothing that superglue and 48 hours of clamping can't fix! so hoping to use it once more) another arm has a micro crack after falling from a tall tree onto soft lawn so it's lacking rigidity but still flies. What bothers me the most is that the long support screws that secure the arms bend or pop heads off (the metal is actually quite thin between end of the thread and the hex cavity) and that the Buzz arms are more expensive compared to the Hawk Pro arms.