I like the better quality of the 1" sensor but the dealer I bought my P4 from said I would not notice the difference. Well, I can see quite a bit of difference. I think the dealer may have wanted to get rid of his P4 stock. My question is can you swap out the gimbal and sensor from a P4 Pro to a P4 standard? I know someone who crashed his Pro and will sell it cheap. the gimbal and sensor still work fine. I don't care about the additional obstacle avoidance, just the better quality pics.