Once you have accepted the parcel, the insurance does not apply anymore. Quite often, internal damages are not obvious until you discover it later during assembly or flight. I've gone through an insurance dispute, which has not been resolved for more than a year, which is a lot of hassle and unnecessary stress. Singapore Hobbies runs a small operation and they can't afford to send you a replacement. Ask me how I know On the other hand, I buy from local distributors, and so far I always get a replacement for transportation damages with no hassle at all.