Not sure, but why don't you make a pair, climb a two story 12/12 pitch and do an analyses between the two.
Oh, and I'm sure you might win $100,000 if you set up a video camera and film it. Just have the next of kin send it to Americas Funniest Videos.
Yes that was extremely sarcastic on my end. But why cut corners when your life and lively hood are at stake.
Cougar Paws = $100.00 replacement paws = $20.00
Is your life not worth that, or do you wanna go cheap?
Good luck out there John.....but REALLY ??????