Thank you for writing this.
Edit to add value: "Same-day" special + email list of people with confirmed willingness to pay money and get pushed out of a perfectly good airplane = a win. Presumably your costs are pretty much fixed after making the decision to do a jump, so you could hit that mailing list with a special promotion multiple times per year. It's a Tuesday, congratulations, have 20% off if we push you out of an airplane, etc.