Dad_Roman, thanks for the reply. I don't even have a spinner on the OS 70, but I know a metal one was pretty much necessary on the bigger Saito 1.80. I'd like to keep this thing as light as possible without going crazy, but I really do like the looks of the aluminum spinners as well as the durability. The cost doesn't bug me too much since I only buy a new plane like once every other year it seems like any more. For that reason, when I do get a new plane, I try to do it right. I seem to learn a lot each time and I think I may have finally gotten it almost right on this Twist. My Ultra Stick could really use better servos and I'm pretty sure that OS 70 with the pump is actually defective. It doesn't pump enough fuel sometimes and I think it's worn out the ring, sleeve, piston, whatever wears out in there. My second four-stroke, that 1.80 runs absolutely wonderful. I did a good job with that plane, but wish I had done a few things a little differently such as the fueling system (my first cowled plane), and the receiver battery. The twist will have the more solid engine (potentially), awesome strong servos, and a LiPo/Regulator for receiver power.
I guess I kinda ranted a little bit, but I'm hoping I don't end up with anything on this plane where I say "man I wish I had done that differently."
-Eric