Is this shaft as stable as either of them? Anyone with real experience with this lightweight shaft?

I played the W5BA for over a year in an old Epon Technity 460.

It was a great shaft with very good feel. It's not quite as light as the RoyDeco or the lightest Wyvern but its just as soft as the torque is also quite high which translates into a lot of that feel.

I would rank it inbetween the RoyDeco and Wyvern for distance and stability and quality is very close to the Crazy as are all Roddio Shafts.

Thanks for the response, T. Any opinion on how they play flex-wise compared the the royal deco or the diamanas?

T, what flex did you game it in? Do you remember the cpm at that flex?