No one can deny it's looks 20 times more impressive, to see a huge model 3Ding than a 40 size for exsample 3Ding. But what you've got to remember its a lot easier, although grantrd it takes more balls! Larger models are more stable, more predictacle, and things happen much more slowly, this gives lots more reaction time. Also the tremondous side area helps keep thigs 90/90, and if your flying a little stick type fun flyer the rudder input does horrible unwanted effects requiring much much more control and timing. In strong winds a small plane is much more effected by the wind, in short a small model is 20 times harder to 3D but looks 20 times less impressive full stop.