Hey Guys, i've owned my phantom for some months now and pretty much know the ins and outs of it. I decided to upgrade and purchase a F550, that was absolutely the best move. I'm currently using a 5000mah 3-cell battery with the large props and at times it appears to be unstable quit a bit. Well I had nothing else better to do and decided to slap on the smaller props and wowwwwwwww what a difference in a good way especially while decending to the ground. My question is now, whats the best set up to have as far as batteries 3-cell or 4-cell and size of props to use?? Can anyone please help me out. I just want to make sure i'm getting the most and best flight time outta my F550. Thanks Guys