That is the plastic spinner, I now have a 2.5" aluminum spinner. This picture is of the maiden voyage, no cowl as I was still tuning the carb and it was a lot easier with the cowl off. I going to change to wood prop as the glass filled Master Airscrew prop really flexes a lot. I don't know that this is bad but you can really hear it unload in the air. Doesn't seem to be an issue once its up to speed I guess. Won't know if it makes a difference until I try. The wheel pants are taking a real beating so the next improvement will be some Robart Struts. That and more practice rolling it in on the landing.