Playing with my L-358 Sekonic meter tonight along with some Cybersync units. I can not seem to get the L-358 to register an f-stop in the Cordless Flash Auto-reset mode.
DIP switches - 1&2 off, 3&4 on.
No PW module installed.
Even direct manual flash from Sunpak 555 at 2 feet gives a reading of 1.1 which is probably ambient but is not indicated as such.
Corded flash mode seems to work, giving reasonable readings when the flash is triggered.
Am I missing something (it's been a long week), got a switch wrong, etc?
Open to suggestions.

