re: Use Old Ones First??
First off, it is illegal (Felony offense; $5,000 fine + actual USCG response costs) to set off distress signals unless there is a real emergency. That includes 4th of July & New Year's Eve events. Over land & out of sight of water -- well, that's a local law enforcement issue.---Rationale for using the old ones first:1. The USCG Regs for recreational vessels prescribe the minimum number & types to be carried. For recreational vessels they recognize the trade-off between costs vs need to carry more, so servicable but expired devices are allowed to be carried as long as there are sufficient unexpired devices aboard. By serviceable, it means they have been kept dry, protected from physical damage, not leaking, etc.2. A prudent skipper would want to optimize his chances & leave as many options open for as long as possible. A real on-the-water emergency for which you would use these devices will require some intelligent management by the distressed skipper. First off, it may take a few attempts to even attract the attention of someone to start a rescue operation. Second, the distressed skipper will want to help vector any approaching rescue craft to their location. So, this will involve use of multiple devices -- e.g., high-altitude parachute/meteor devices for attracting attention, flares for vectoring rescue craft.3. That said, launching an "expired" device first leaves a reserve of supposedly higher reliability devices for later. If it fails to ignite, you can quickly attempt to use another. If they do ignite, well -- you have that reserve available for other options.--Ron