I guess it really depends what you'll be using them on... OMO:-) I
do not have Futaba, but have a standard set of BB's and Bushing
and I really did not notice any difference, Although you would
think the BB would be much better and last longer.. But depending
on the plane and how your going to fly them I think the bushing
ones are just fine if you wanted to pinch a penny here or there..
But as Mark said the standard BB's are not that much more...

Now on control rods... I've seen a BIG difference between the
stock 4* rods(plastic or what ever) and the composites....