I have had my NDK for 4 years . I am going to put a thin kevlar strip
on it eventually. I have some patches done but when you are slammed
into or left on a rock it is not always dead centre . I have chips
knocked out og my keel by the ( Empty ) skeg box . They will be
repaired easily and quickly. That strip is coming but it is not a
pressing issue.
I will wear it out then replace it, as I do with my cars tyres.