The nose cone will be in danger of beeing cracked form the rings on tow ropes.
For some years, I have used a clear mylar inside the cone to protect it, and it seems to do the job.
FIG 1: The Mylar
Dark markings: Where I fold it slightly to fit the nose cone on my Ventus.
FIG 2:Test fit
Protective strip on. When satisfyed, gently remove the protective paper under the mylar, allowing for a good fit.
FIG 3: Done