These are some good questions that I would like to know the answer to as well. I have no blade strike issues with my shorter flybar. But I am looking at a website and I am interested in certain items, if some people here can possibly answer a few related questions.

www.helihobby.com/html/blade_cx2.html

This website has some upgraded blade grips (PART#BCX2-SL52) for $32.95

I am interested in these, but I want to know if I can use the stock upper and lower shafts. I have no desire to put aluminum anything on my heli. The folding white blades that are stiffer with the letters A and B on them have my interest, but right now my heli flies great and I don't want to modify it even more and have issues. So I hope someone out there has this stuff and can provide some knowledge to the rest of us.

Thanks guys

Oh and can I use the factory flybar with dual linkages, that is what I currently use.