1)there are differant flexsto all rods sold , look at the colors when your in the store , you will see some will bend easily other offer more regidity .
2)you can get creative to make sure your model is more secure -as min flyer suggest red outer , yellow inner , you can even cut a small piece of carbon fiber rod to add major regidity at the exist point and over the red portion , this will even make it stiffer .

3)finally you can add some non offensice descrete triangle stock to the "red outer tube" attached to the fuse to add more support .