The Do is a good choice for learning 3-D,a good profile is a good choice to start out with,if you like what you have,keep it as long as you can and get the most out of it,then start thinking about your next step if you want to. I dont think it really matters if its a profile or full fuse,long as you get something out of it. My whole point here is I dont believe there is any special advantage of one over the other anymore. I was looking at Flinton models yesterday,their 60 size 3-D birds come in 3-5lbs! Unheard of when I was flying the SuDoKoi.