RE: CAP or Extra?
The Sportster and Ultra look like nice planes, but seem similar to the World Models LA Racer which I have been flying for the last three months. It is a 40 size, low wing tail dragger with a OS 46AX. You are right in that it has taken me a while to adjust to a larger plane that is faster and needs a larger area to fly in. After probably a 100 flights I am getting comfortable!
Yesterday I visited my LHS and they told me that Great Planes has discontinued the Extra 300 kit. So I ordered a SIG. I see that Tower still shows both the 40 size and 60 size Extra kits in stock. I may order the 60 size and let it sit on the shelf for a while.