Cynically, if your insurance company says "4mm cross cut and a paper trail to prove it was done", then that's what you do. Why try harder? But yes, paper that'

Cynically, if your insurance company says "4mm cross cut and a paper trail to prove it was done", then that's what you do. Why try harder? But yes, paper that's shredded by a specialist paper-shredding company is then typically baled up and sent for recycling.