G'day all, I've only been a quad owner a week, and with stormy weather in that week, I've only managed to fly it twice. While I was looking for photos of a Carbon Fibre Phantom 2 to show a friend what one looks like, I found some replacement blades for the P2 that are a carbon fibre, folding, 3 blade design. What would the advantage/disadvantage be to these having 3 blades on each? I'm assuming more lift if you have 3 blades on each corner, but probably less flight time as spinning 3 blades might be more power hungry than spinning 2, but that would only be guessing. Would that be correct? I can't work out if they'll spin slower, so make the quad slower, or give more thrust and so make the quad faster? I still have a lot to work out in the dynamics between prop size, spin speed, number of blades, and how those affect flight times, lifting capacity, speed, etc. The folding design would be nice for packing away in it's case, possibly without having to remove the blades, but mine won't go in the case with the prop guards on anyway, so until I'm confident to remove them, I don't get to use the case much anyway. They might also suffer less damage in an impact if they would fold under the contact, but again that's surmising rather than knowing. Would love to know what others think of them.