Thanks for everyone's advice. The x8 is flying very nice in comparison to either my quad or flat octo. Don't knowif it is the new firmware (been since April 2012 since I upgraded last) or better build skills, or luck.
Btw, I am flying with 12x3.8 apc and it is working fairly well. I will...
The smaller size for shipping was my main reason for looking at an x8 instead of continuing with my flat octo. Iris quote about wanting it as large as possible in the air is obvious but not thought about before the build was complete.
I am converting my quad to an x8 and want some simple advice or just being pointed in right direction. I have flown hoverfly flat octo and hoverfly quad for over year and just need some advice on my first "coaxial"
I remember a lot of discussion about props. Smaller bottom larger top (I think...