Jab Congratulations for your Octo, it's really nice.
Please post more pictures and videos..
I'm looking this Octo, and I planing to buy.
How much weight your Octo complete.?
I have a Rusty Hexa with AV130, works excellent, The Gimbal is very good and is't Light than Cinestar, but Cinestar Gimbal is more Flexible and configurable for diferent cameras, also the weight and price are High.
The AV200 are for bigger Cameras.
Also I Have the Skyline RSGS, this is the independient Gyro Stabilization for AV130/AV200 This product have some jittering problems now, but in the new firmware may be they will solve.
It's important to solve how to mout the Gimbal to your Multirotor, the AV 130/200 use mounts for Droidworx and have grommets for isolation (it's not the best) and Cinestar have an axcellent and expensive system (I have a CNC too and I planing to build a similar mounting system like Cinestar)