One motor pulses at idle. Interestingly I've tested it with 4 different batteries. On two fully charged batteries it does NOT do this but on the other two batteries that were between 25-35% charged the Phantom will pulse at idle. When it does pulse on light throttle it will go away. I haven't tested this in the air as i'm afraid that something crazy might happen. Can any other P2V+ owners confirm if theirs does this as well? Thanks.