Capt Jim Wyatt
Hanging at the 10 Foot Stop
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For people running lights in your pockets. Are these your 3rd and 4th backups?
Do you have failures enough that you worry about 3 other lights failing? Do you dive solo? I'm just trying to understand why people think it is necessary. With the exception of using relatively new lights I don't feel the need for more than the two strapped to my chest.
I carry a backup primary in case my student has a primary light failure. I carry my own primary light and two backups in case I have to pass the backup primary off to the student.
Frequently I dive caves & wrecks solo. I use the Dive-Rite RX-8 as my primary light. I carry a Finn-Sub as the backup primary.