@VintageVulpix asks
one card won't come out of a pocket. Do I pull harder or cut the page?
Jeff answers
I'd stop pulling. Support the page and inspect what is catching before doing anything else. If freeing it requires sacrificing the pocket, have someone experienced help rather than putting a blade near the card yourself. A replaceable page isn't worth saving at the card's expense.
— Jeff, infinitepulls.com