Great to see bicopters getting some love!
I found lowering the GC as much as possible helps, this has the effect of ‘speeding up’ the servos. A smaller movement gives same amount of thrust vectoring moment.
Front and back ‘chinook’ bicoipter layout is not currently sported.
I looked into OAT a little, I suspect it wont work that well on a smaller scale due to size/weight of the props. If I recall correctly they can also the saturate gyroscopic effects and suddenly become a normal bi-copter.