[rgbii]

Sorry, I should have mentioned that, it's for Canon, though a similar issue might
happen for other mngr cameras with a similar flash.
My sigma seems to have only one mode it will tricker from the center contact, and
that's in non-ettl slave mode. The flash has been this way since I got it, which has
been a few years now.

This seems to be a simple case of a long trigger duration. I've swapped the two
PW's, and get the same behaviour.
This could be more of an issue with the Sigma than the PW's, that's why I'm hoping
someone with similar gear can confirm or deny this behavior.
Even at higher settings on the sigma, I get the same behavior, but with the added
problem of it using more power, and causing longer recharge times and of course
draining the batteries quicker.

Anyone with Canon, PW and Sigma flash that has ran into this, or can test it?
Thanks,
Richard.