what are you trying to prove? if a super spider exists or if its lethal? and what would be proof to you? i know for me the fact that there isn't one 10 years later is enough for me. what do you want data from? 1 clutch 3 clutch 10 clutch 50 clutch? theres always going to be a small chance it never gets hit on. so you can't 100% prove it.