Fresh regular seed from a decent breeder should sprout at close to ninety percent, and anything under seventy suggests either age or rough handling in transit. Damp paper towel and a warm dark spot still beats most of the gadgets sold for the job. Notes on soaking times and when to give up on a stubborn seed are set out at https://breederregularseeds.com. Cracking shells with tweezers usually kills more seeds than it saves.